PMC:7029449 / 5453-8651
Annnotations
LitCovid-PubTator
{"project":"LitCovid-PubTator","denotations":[{"id":"87","span":{"begin":40,"end":45},"obj":"Species"},{"id":"88","span":{"begin":388,"end":397},"obj":"Species"},{"id":"89","span":{"begin":900,"end":909},"obj":"Species"},{"id":"90","span":{"begin":768,"end":777},"obj":"Species"},{"id":"91","span":{"begin":832,"end":841},"obj":"Species"},{"id":"92","span":{"begin":933,"end":942},"obj":"Species"},{"id":"93","span":{"begin":1019,"end":1028},"obj":"Species"},{"id":"94","span":{"begin":46,"end":56},"obj":"Disease"},{"id":"95","span":{"begin":107,"end":116},"obj":"Disease"},{"id":"96","span":{"begin":163,"end":173},"obj":"Disease"},{"id":"97","span":{"begin":188,"end":197},"obj":"Disease"},{"id":"98","span":{"begin":232,"end":242},"obj":"Disease"},{"id":"99","span":{"begin":474,"end":484},"obj":"Disease"},{"id":"100","span":{"begin":497,"end":507},"obj":"Disease"},{"id":"101","span":{"begin":564,"end":584},"obj":"Disease"},{"id":"102","span":{"begin":724,"end":733},"obj":"Disease"},{"id":"103","span":{"begin":986,"end":995},"obj":"Disease"},{"id":"109","span":{"begin":1405,"end":1410},"obj":"Species"},{"id":"110","span":{"begin":1453,"end":1461},"obj":"Species"},{"id":"111","span":{"begin":1212,"end":1222},"obj":"Disease"},{"id":"112","span":{"begin":1268,"end":1273},"obj":"Disease"},{"id":"113","span":{"begin":1382,"end":1392},"obj":"Disease"},{"id":"122","span":{"begin":1692,"end":1700},"obj":"Species"},{"id":"123","span":{"begin":2295,"end":2300},"obj":"Species"},{"id":"124","span":{"begin":2336,"end":2344},"obj":"Species"},{"id":"125","span":{"begin":2365,"end":2374},"obj":"Species"},{"id":"126","span":{"begin":1659,"end":1668},"obj":"Disease"},{"id":"127","span":{"begin":1716,"end":1725},"obj":"Disease"},{"id":"128","span":{"begin":1756,"end":1765},"obj":"Disease"},{"id":"129","span":{"begin":1996,"end":2004},"obj":"Disease"},{"id":"134","span":{"begin":2863,"end":2872},"obj":"Species"},{"id":"135","span":{"begin":2897,"end":2905},"obj":"Species"},{"id":"136","span":{"begin":2669,"end":2688},"obj":"Disease"},{"id":"137","span":{"begin":3073,"end":3082},"obj":"Disease"}],"attributes":[{"id":"A87","pred":"tao:has_database_id","subj":"87","obj":"Tax:9606"},{"id":"A88","pred":"tao:has_database_id","subj":"88","obj":"Tax:2697049"},{"id":"A89","pred":"tao:has_database_id","subj":"89","obj":"Tax:2697049"},{"id":"A90","pred":"tao:has_database_id","subj":"90","obj":"Tax:11309"},{"id":"A91","pred":"tao:has_database_id","subj":"91","obj":"Tax:11309"},{"id":"A92","pred":"tao:has_database_id","subj":"92","obj":"Tax:11309"},{"id":"A93","pred":"tao:has_database_id","subj":"93","obj":"Tax:11309"},{"id":"A94","pred":"tao:has_database_id","subj":"94","obj":"MESH:D007239"},{"id":"A95","pred":"tao:has_database_id","subj":"95","obj":"MESH:D011014"},{"id":"A96","pred":"tao:has_database_id","subj":"96","obj":"MESH:D007239"},{"id":"A97","pred":"tao:has_database_id","subj":"97","obj":"MESH:D011014"},{"id":"A98","pred":"tao:has_database_id","subj":"98","obj":"MESH:D007239"},{"id":"A99","pred":"tao:has_database_id","subj":"99","obj":"MESH:D007239"},{"id":"A100","pred":"tao:has_database_id","subj":"100","obj":"MESH:D007239"},{"id":"A101","pred":"tao:has_database_id","subj":"101","obj":"MESH:C000657245"},{"id":"A102","pred":"tao:has_database_id","subj":"102","obj":"MESH:D007239"},{"id":"A103","pred":"tao:has_database_id","subj":"103","obj":"MESH:D007239"},{"id":"A109","pred":"tao:has_database_id","subj":"109","obj":"Tax:9606"},{"id":"A110","pred":"tao:has_database_id","subj":"110","obj":"Tax:9606"},{"id":"A111","pred":"tao:has_database_id","subj":"111","obj":"MESH:D007239"},{"id":"A112","pred":"tao:has_database_id","subj":"112","obj":"MESH:D009765"},{"id":"A113","pred":"tao:has_database_id","subj":"113","obj":"MESH:D007239"},{"id":"A122","pred":"tao:has_database_id","subj":"122","obj":"Tax:9606"},{"id":"A123","pred":"tao:has_database_id","subj":"123","obj":"Tax:9606"},{"id":"A124","pred":"tao:has_database_id","subj":"124","obj":"Tax:9606"},{"id":"A125","pred":"tao:has_database_id","subj":"125","obj":"Tax:2697049"},{"id":"A126","pred":"tao:has_database_id","subj":"126","obj":"MESH:D007239"},{"id":"A127","pred":"tao:has_database_id","subj":"127","obj":"MESH:D007239"},{"id":"A128","pred":"tao:has_database_id","subj":"128","obj":"MESH:D007239"},{"id":"A129","pred":"tao:has_database_id","subj":"129","obj":"MESH:D007239"},{"id":"A134","pred":"tao:has_database_id","subj":"134","obj":"Tax:2697049"},{"id":"A135","pred":"tao:has_database_id","subj":"135","obj":"Tax:1335626"},{"id":"A136","pred":"tao:has_database_id","subj":"136","obj":"MESH:C000657245"},{"id":"A137","pred":"tao:has_database_id","subj":"137","obj":"MESH:D007239"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PMC-OGER-BB
{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T69","span":{"begin":40,"end":45},"obj":"SP_6;NCBITaxon:9606"},{"id":"T68","span":{"begin":280,"end":286},"obj":"UBERON:0007023"},{"id":"T67","span":{"begin":388,"end":397},"obj":"SP_7"},{"id":"T66","span":{"begin":564,"end":573},"obj":"SP_7"},{"id":"T65","span":{"begin":900,"end":909},"obj":"SP_7"},{"id":"T64","span":{"begin":1260,"end":1266},"obj":"UBERON:0007023"},{"id":"T63","span":{"begin":1274,"end":1285},"obj":"NCBITaxon:1"},{"id":"T62","span":{"begin":1396,"end":1404},"obj":"GO:0007565"},{"id":"T61","span":{"begin":1789,"end":1795},"obj":"UBERON:0002405"},{"id":"T60","span":{"begin":1929,"end":1934},"obj":"NCBITaxon:10239"},{"id":"T59","span":{"begin":1966,"end":1971},"obj":"NCBITaxon:10239"},{"id":"T58","span":{"begin":2365,"end":2374},"obj":"SP_7"},{"id":"T57","span":{"begin":2669,"end":2678},"obj":"SP_7"},{"id":"T56","span":{"begin":2786,"end":2796},"obj":"GO:0042571"},{"id":"T55","span":{"begin":2863,"end":2872},"obj":"SP_7"},{"id":"T54","span":{"begin":2897,"end":2905},"obj":"SP_9"},{"id":"T53","span":{"begin":2971,"end":2981},"obj":"GO:0042571"},{"id":"T52","span":{"begin":3039,"end":3047},"obj":"GO:0042571"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PD-FMA-UBERON
{"project":"LitCovid-PD-FMA-UBERON","denotations":[{"id":"T4","span":{"begin":3039,"end":3047},"obj":"Body_part"}],"attributes":[{"id":"A4","pred":"fma_id","subj":"T4","obj":"http://purl.org/sig/ont/fma/fma62871"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PD-UBERON
{"project":"LitCovid-PD-UBERON","denotations":[{"id":"T3","span":{"begin":822,"end":828},"obj":"Body_part"}],"attributes":[{"id":"A3","pred":"uberon_id","subj":"T3","obj":"http://purl.obolibrary.org/obo/UBERON_0002542"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PD-MONDO
{"project":"LitCovid-PD-MONDO","denotations":[{"id":"T21","span":{"begin":46,"end":56},"obj":"Disease"},{"id":"T22","span":{"begin":107,"end":116},"obj":"Disease"},{"id":"T23","span":{"begin":163,"end":173},"obj":"Disease"},{"id":"T24","span":{"begin":188,"end":197},"obj":"Disease"},{"id":"T25","span":{"begin":232,"end":242},"obj":"Disease"},{"id":"T26","span":{"begin":474,"end":484},"obj":"Disease"},{"id":"T27","span":{"begin":497,"end":507},"obj":"Disease"},{"id":"T28","span":{"begin":564,"end":584},"obj":"Disease"},{"id":"T29","span":{"begin":724,"end":733},"obj":"Disease"},{"id":"T30","span":{"begin":768,"end":777},"obj":"Disease"},{"id":"T31","span":{"begin":832,"end":841},"obj":"Disease"},{"id":"T32","span":{"begin":933,"end":942},"obj":"Disease"},{"id":"T33","span":{"begin":986,"end":995},"obj":"Disease"},{"id":"T34","span":{"begin":1019,"end":1028},"obj":"Disease"},{"id":"T35","span":{"begin":1382,"end":1395},"obj":"Disease"},{"id":"T36","span":{"begin":1659,"end":1668},"obj":"Disease"},{"id":"T37","span":{"begin":1716,"end":1725},"obj":"Disease"},{"id":"T38","span":{"begin":1756,"end":1765},"obj":"Disease"},{"id":"T39","span":{"begin":2669,"end":2688},"obj":"Disease"},{"id":"T40","span":{"begin":2679,"end":2688},"obj":"Disease"},{"id":"T41","span":{"begin":3073,"end":3082},"obj":"Disease"}],"attributes":[{"id":"A21","pred":"mondo_id","subj":"T21","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A22","pred":"mondo_id","subj":"T22","obj":"http://purl.obolibrary.org/obo/MONDO_0005249"},{"id":"A23","pred":"mondo_id","subj":"T23","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A24","pred":"mondo_id","subj":"T24","obj":"http://purl.obolibrary.org/obo/MONDO_0005249"},{"id":"A25","pred":"mondo_id","subj":"T25","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A26","pred":"mondo_id","subj":"T26","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A27","pred":"mondo_id","subj":"T27","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A28","pred":"mondo_id","subj":"T28","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"},{"id":"A29","pred":"mondo_id","subj":"T29","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A30","pred":"mondo_id","subj":"T30","obj":"http://purl.obolibrary.org/obo/MONDO_0005812"},{"id":"A31","pred":"mondo_id","subj":"T31","obj":"http://purl.obolibrary.org/obo/MONDO_0005812"},{"id":"A32","pred":"mondo_id","subj":"T32","obj":"http://purl.obolibrary.org/obo/MONDO_0005812"},{"id":"A33","pred":"mondo_id","subj":"T33","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A34","pred":"mondo_id","subj":"T34","obj":"http://purl.obolibrary.org/obo/MONDO_0005812"},{"id":"A35","pred":"mondo_id","subj":"T35","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A36","pred":"mondo_id","subj":"T36","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A37","pred":"mondo_id","subj":"T37","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A38","pred":"mondo_id","subj":"T38","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A39","pred":"mondo_id","subj":"T39","obj":"http://purl.obolibrary.org/obo/MONDO_0100096"},{"id":"A40","pred":"mondo_id","subj":"T40","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A41","pred":"mondo_id","subj":"T41","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T32","span":{"begin":40,"end":45},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_9606"},{"id":"T33","span":{"begin":81,"end":82},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T34","span":{"begin":1119,"end":1120},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T35","span":{"begin":1479,"end":1481},"obj":"http://purl.obolibrary.org/obo/CLO_0050510"},{"id":"T36","span":{"begin":1492,"end":1493},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T37","span":{"begin":1929,"end":1934},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"},{"id":"T38","span":{"begin":1966,"end":1971},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"},{"id":"T39","span":{"begin":2164,"end":2165},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T40","span":{"begin":2988,"end":2989},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PD-CHEBI
{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T1","span":{"begin":1503,"end":1508},"obj":"Chemical"},{"id":"T2","span":{"begin":1681,"end":1686},"obj":"Chemical"},{"id":"T3","span":{"begin":2487,"end":2495},"obj":"Chemical"}],"attributes":[{"id":"A1","pred":"chebi_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/CHEBI_24433"},{"id":"A2","pred":"chebi_id","subj":"T2","obj":"http://purl.obolibrary.org/obo/CHEBI_24433"},{"id":"A3","pred":"chebi_id","subj":"T3","obj":"http://purl.obolibrary.org/obo/CHEBI_78059"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-PD-HP
{"project":"LitCovid-PD-HP","denotations":[{"id":"T4","span":{"begin":107,"end":116},"obj":"Phenotype"},{"id":"T5","span":{"begin":188,"end":197},"obj":"Phenotype"},{"id":"T6","span":{"begin":490,"end":507},"obj":"Phenotype"}],"attributes":[{"id":"A4","pred":"hp_id","subj":"T4","obj":"http://purl.obolibrary.org/obo/HP_0002090"},{"id":"A5","pred":"hp_id","subj":"T5","obj":"http://purl.obolibrary.org/obo/HP_0002090"},{"id":"A6","pred":"hp_id","subj":"T6","obj":"http://purl.obolibrary.org/obo/HP_0032169"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T30","span":{"begin":0,"end":29},"obj":"Sentence"},{"id":"T31","span":{"begin":30,"end":198},"obj":"Sentence"},{"id":"T32","span":{"begin":199,"end":508},"obj":"Sentence"},{"id":"T33","span":{"begin":509,"end":701},"obj":"Sentence"},{"id":"T34","span":{"begin":702,"end":953},"obj":"Sentence"},{"id":"T35","span":{"begin":954,"end":1111},"obj":"Sentence"},{"id":"T36","span":{"begin":1112,"end":1211},"obj":"Sentence"},{"id":"T37","span":{"begin":1212,"end":1466},"obj":"Sentence"},{"id":"T38","span":{"begin":1467,"end":1687},"obj":"Sentence"},{"id":"T39","span":{"begin":1688,"end":1766},"obj":"Sentence"},{"id":"T40","span":{"begin":1767,"end":1935},"obj":"Sentence"},{"id":"T41","span":{"begin":1936,"end":2067},"obj":"Sentence"},{"id":"T42","span":{"begin":2068,"end":2326},"obj":"Sentence"},{"id":"T43","span":{"begin":2327,"end":2496},"obj":"Sentence"},{"id":"T44","span":{"begin":2497,"end":2612},"obj":"Sentence"},{"id":"T45","span":{"begin":2613,"end":2818},"obj":"Sentence"},{"id":"T46","span":{"begin":2819,"end":2987},"obj":"Sentence"},{"id":"T47","span":{"begin":2988,"end":3105},"obj":"Sentence"},{"id":"T48","span":{"begin":3106,"end":3198},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Disease severity and immunity\nThe first human infections were identified through a surveillance system for pneumonia of unknown aetiology, and all of the earliest infections therefore had pneumonia. It is well established that some infections can be severe, particularly in older adults with underlying medical conditions [15,16], but based on the generally mild clinical presentation of 2019-nCoV cases detected outside China, it appears that there could be many more mild infections than severe infections. Determining the spectrum of clinical manifestations of 2019-nCoV infections is perhaps the most urgent research priority, because it determines the strength of public health response required. If the seriousness of infection is similar to the 1918/19 Spanish influenza, and therefore at the upper end of severity scales in influenza pandemic plans, the same responses would be warranted for 2019-nCoV as for the most severe influenza pandemics. If, however, the seriousness of infection is similar to seasonal influenza, especially during milder seasons, mitigation measures could be tuned accordingly.\nBeyond a robust assessment of overall severity, it is also important to determine high risk groups. Infections would likely be more severe in older adults, obese individuals or those with underlying medical conditions, but there have not yet been reports of severity of infections in pregnant women, and very few cases have been reported in children [2].\nThose under 18 years are a critical group to study in order to tease out the relative roles of susceptibility vs severity as possible underlying causes for the very rare recorded instances of infection in this age group. Are children protected from infection or do they not fall ill after infection? If they are naturally immune, which is unlikely, we should understand why; otherwise, even if they do not show symptoms, it is important to know if they shed the virus. Obviously, the question about virus shedding of those being infected but asymptomatic leads to the crucial question of infectivity. Answers to these questions are especially pertinent as basis for decisions on school closure as a social distancing intervention, which can be hugely disruptive not only for students but also because of its knock-on effect for child care and parental duties. Very few children have been confirmed 2019-nCoV cases so far but that does not necessarily mean that they are less susceptible or that they could not be latent carriers. Serosurveys in affected locations could inform this, in addition to truly assessing the clinical severity spectrum.\nAnother question on susceptibility is regarding whether 2019-nCoV infection confers neutralising immunity, usually but not always, indicated by the presence of neutralising antibodies in convalescent sera. Some experts already questioned whether the 2019-nCoV may behave similarly to MERS-CoV in cases exhibiting mild symptoms without eliciting neutralising antibodies [17]. A separate question pertains to the possibility of antibody-dependent enhancement of infection or of disease [18,19]. If either of these were to be relevant, the transmission dynamics could become more complex."}