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. 2021 Apr 30;70(17):639–643. doi: 10.15585/mmwr.mm7017e2

FIGURE.

The figure is a histogram, an epidemiologic curve that shows SARS-CoV-2 symptom onset among residents and health care personnel in a skilled nursing facility in Kentucky, relative to onset in the index patient, by vaccination status, in March 2021.

SARS-CoV-2 illness onset* among residents and health care personnel (HCP) in a skilled nursing facility, relative to onset in the index patient, by vaccination status† — Kentucky, March 2021

* Symptom onset date or specimen collection date, if asymptomatic.

† Persons who received 2 doses of Pfizer-BioNTech vaccine are indicated as vaccinated; unvaccinated persons received no vaccine doses. Persons who received a second dose of vaccine <14 days before outbreak onset (four residents and five HCP) and those who received only a single dose of vaccine (one HCP) were excluded from the primary analysis; this resulted in exclusion of two cases that occurred in residents.

HHS Vulnerability Disclosure