PMC:7712180 / 216-557 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"52","span":{"begin":56,"end":62},"obj":"Species"},{"id":"53","span":{"begin":223,"end":240},"obj":"Species"},{"id":"54","span":{"begin":264,"end":268},"obj":"Species"},{"id":"77","span":{"begin":242,"end":245},"obj":"Species"},{"id":"84","span":{"begin":311,"end":317},"obj":"Disease"}],"attributes":[{"id":"A52","pred":"tao:has_database_id","subj":"52","obj":"Tax:9606"},{"id":"A53","pred":"tao:has_database_id","subj":"53","obj":"Tax:11320"},{"id":"A54","pred":"tao:has_database_id","subj":"54","obj":"Tax:114727"},{"id":"A77","pred":"tao:has_database_id","subj":"77","obj":"Tax:11320"},{"id":"A84","pred":"tao:has_database_id","subj":"84","obj":"MESH:D003643"}],"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":"have occasionally caused airborne epidemic outbreaks in humans, who are immunologically naïve, and the outbreaks have resulted in high fatality rates as well as social and economic disruption and losses. The most devasting influenza A virus (IAV) in αIV, pandemic H1N1 in 1918, which caused at least 40 million deaths from about 500 million "}