PMC:7060038 / 41982-42216 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T145","span":{"begin":172,"end":175},"obj":"http://purl.obolibrary.org/obo/CLO_0051582"},{"id":"T146","span":{"begin":227,"end":228},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ttings, such measures could help reduce the risk of local transmission and superspreading, but their quantitative effectiveness is unknown. Once limited local transmission has begun, arrival screening could still have merit as a means"}