CDC Novel Coronavirus

Prioritizing non-healthcare worksite assessments for Coronavirus Disease 2019 (COVID-19)

Definition of a COVID-19 cluster in a non-healthcare worksite

For non-healthcare worksites, a COVID-19 cluster is defined as two or more confirmed or probable cases within the last 14 days with a potential connection in time and place at a worksite, in employer-provided group housing, or among workers using employer-provided transportation. Note that in communities with substantial SARS-CoV-2 transmission, it might be expected for some worksites to identify two or more cases within a 14-day period that are not connected to the worksite or to employer-provided housing or transportation. This applies especially to large employers. In these circumstances, efforts should be made to determine if there are plausible epidemiologic links among cases in the worksite and to rule out the possibility of exposure outside of the worksite.

Potential worksite clusters might be identified through case investigation, contact tracing, worker complaints, or employer reports to the health department. Depending on the strength of evidence, these potential clusters might warrant worksite assessment even if there are not yet laboratory confirmed cases. The absence of laboratory confirmation alone should not always rule out investigating a potential worksite cluster, particularly when there may be testing shortages or delayed test results.

Read the original article at Centers for Disease Control and Prevention (CDC)

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