PMC:7269710 / 27556-27677 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T210","span":{"begin":36,"end":42},"obj":"http://purl.obolibrary.org/obo/CLO_0001658"}],"text":"It is important for countries to do active case-finding among close contacts of cases to prevent clusters from spreading."}

{"project":"LitCovid-sentences","denotations":[{"id":"T236","span":{"begin":0,"end":121},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"It is important for countries to do active case-finding among close contacts of cases to prevent clusters from spreading."}