Outbreaks of SARS-CoV-2 Infections in Nursing Homes during Periods of Delta and Omicron Predominance, United States, July 2021–March 2022
W. Wyatt Wilson
, Amelia A. Keaton, Lucas G. Ochoa, Kelly M. Hatfield, Paige Gable, Kelly A. Walblay, Richard A. Teran, Meghan Shea, Urooj Khan, Ginger Stringer, Meenalochani Ganesan, Jordan Gilbert, Joanne G. Colletti, Erin M. Grogan, Carly Calabrese, Andrew Hennenfent, Rebecca Perlmutter, Katherine A. Janiszewski, Christina Brandeburg, Ishrat Kamal-Ahmed, Kyle Strand, Matthew Donahue, M. Salman Ashraf, Emily Berns, Jennifer MacFarquhar, Meghan L. Linder, Dat J. Tran, Patricia Kopp, Rebecca M. Walker, Rebekah Ess, James Baggs, John A. Jernigan, Alex Kallen, Jennifer C. Hunter, and Monitoring Outbreaks of Variants in Nursing Homes (MOVIN) Surveillance Team1
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (W.W. Wilson, A.A. Keaton, L.G. Ochoa, K.M. Hatfield, P. Gable, R.A. Teran, J. MacFarquhar, J. Baggs, J.A. Jernigan, A. Kallen, J.C. Hunter); Chicago Department of Public Health, Chicago, Illinois, USA (K.A. Walblay, R.A. Teran); Colorado Department of Public Health and Environment, Denver, Colorado, USA (M. Shea, U. Khan, G. Stringer, M. Ganesan, J. Gilbert); Connecticut Department of Public Health, Hartford, Connecticut, USA (J.G. Colletti, E.M. Grogan); Iowa Department of Health and Human Services, Des Moines, Iowa, USA (C. Calabrese, A. Hennenfent); Maryland Department of Health, Baltimore, Maryland, USA (R. Perlmutter); Massachusetts Department of Public Health, Jamaica Plain, Massachusetts, USA (K.A. Janiszewski, C. Brandeburg); Nebraska Department of Health and Human Services, Lincoln, Nebraska, USA (I. Kamal-Ahmed, K. Strand, M. Donahue, M.S. Ashraf); North Carolina Department of Health and Human Services, Raleigh, North Carolina, USA (E. Berns, J. MacFarquhar); Oregon Health Authority, Portland, Oregon, USA (M.L. Linder, D.J. Tran); South Carolina Department of Health and Environmental Control, Columbia, South Carolina, USA (P. Kopp, R.M. Walker); Utah Department of Health, Salt Lake City, Utah, USA (R. Ess).
Figure 2. SARS-CoV-2 outbreaks in nursing homes (n = 1,247) by calendar time in weeks, United States, July 2021–March 2022. *January 31, 2022 was the last date for reporting new outbreaks; †resident infections for active outbreaks were reported through February 28, 2022, making March 14, 2022 the last date for an outbreak to close. Outbreaks that were not reported as closed by that date were considered still active. EUA, Emergency Use Authorization; FDA, Food and Drug Administration; J&J, Janssen/Johnson & Johnson, https://www.jnj.com; Pfizer-BioNTech, https://www.pfizer.com.
Page created: February 23, 2023
Page updated: March 20, 2023
Page reviewed: March 20, 2023
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