PMC:7103735 / 33583-33729 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T399","span":{"begin":68,"end":73},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"}],"text":"The key questions concern how often asymptomatic and presymptomatic virus shedding might occur as well as whether their viral loads could be high."}

{"project":"LitCovid-sentences","denotations":[{"id":"T289","span":{"begin":0,"end":146},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The key questions concern how often asymptomatic and presymptomatic virus shedding might occur as well as whether their viral loads could be high."}