PMC:7060038 / 42643-42884 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T150","span":{"begin":88,"end":89},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ategies that help reduce the probability that any single imported case spreads to cause a self-sustaining local epidemic. The cost-benefit tradeoff for any screening policy should be assessed in light of past experiences, where few or no inf"}