PMC:7784824 / 12579-12684 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T128","span":{"begin":0,"end":105},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Sensitivity on day 8–18 after symptom onset ranged from 50% to 94% for IgM/A and from 81% to 94% for IgG."}