PMC:7712180 / 9431-9563 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"415","span":{"begin":126,"end":131},"obj":"Gene"}],"attributes":[{"id":"A415","pred":"tao:has_database_id","subj":"415","obj":"Gene:43740568"}],"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":"s in birds occurs in the intestinal and respiratory tracts [121,122]. The virus host range is chiefly determined by the viral spike "}