PMC:7551987 / 5903-6198 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T35","span":{"begin":40,"end":153},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ther than long-lived infectious stages. Further, the evolution of high virulence does not have to occur solely through a transmission–virulence tradeoff. Day [18] demonstrated how pathogens can evolve high virulence and even select for traits to kill the host (e.g., toxins) if pathogen transmis"}