PMC:7551987 / 5943-6056 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T35","span":{"begin":0,"end":113},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Further, the evolution of high virulence does not have to occur solely through a transmission–virulence tradeoff."}