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. 2021 Apr 30;70(17):632–638. doi: 10.15585/mmwr.mm7017e1

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This figure is a bar chart showing the SARS-CoV-2 infections among residents and staff members at 75 skilled nursing facilities in Chicago, Illinois, during December 2020–March 2021. — Confirmed SARS-CoV-2 infections (n = 627) among residents and staff members at 75* skilled nursing facilities, by specimen collection date and vaccination status^† — Chicago, Illinois, December 2020–March 2021

Abbreviation: PPP = Federal Pharmacy Partnership for Long-Term Care Program.

* Among 78 Chicago-based facilities. Three facilities had no confirmed SARS-CoV-2 infections.

† Unvaccinated: received no COVID-19 vaccine doses; partially vaccinated: received one dose; vaccinated but not immune: received two doses but <14 days had elapsed since receipt of second dose; fully vaccinated with breakthrough infection: received two doses and then received a positive SARS-CoV-2 test result ≥14 days after receipt of the second dose.