PMC:7551987 / 276-494 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T4","span":{"begin":7,"end":186},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ealth. Part of this canon involves the idea that virulence and free-living survival (a key component of transmission) may have different relationships in different host–parasite systems. Most examinations of the evolut"}