PMC:7060038 / 45499-45719 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T162","span":{"begin":34,"end":35},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ing programs. However, we present a robust qualitative finding: in any situation where there is widespread epidemic transmission in source populations from which travellers are drawn, travel screening programs can slow ("}