PMC:7269710 / 868-1119 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T12","span":{"begin":17,"end":53},"obj":"Sentence"},{"id":"T13","span":{"begin":54,"end":216},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"on in Singapore. 425 close contacts were quarantined. Direct or prolonged close contact was reported among affected individuals, although indirect transmission (eg, via fomites and shared food) could not be excluded. The median incubation period of SA"}