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Volume 27, Number 8—August 2021

Transmission Dynamics of Severe Acute Respiratory Syndrome Coronavirus 2 in High-Density Settings, Minnesota, USA, March–June 2020

Nicholas B. LehnertzComments to Author , Xiong Wang, Jacob Garfin, Joanne Taylor, Jennifer Zipprich, Brittany VonBank, Karen Martin, Dana Eikmeier, Carlota Medus, Brooke Wiedinmyer, Carmen Bernu, Matthew Plumb, Kelly Pung, Margaret A. Honein, Rosalind Carter, Duncan MacCannell, Kirk E. Smith, Kathryn Como-Sabetti, Kris Ehresmann, Richard Danila, and Ruth Lynfield
Author affiliations: Minnesota Department of Health, St. Paul, Minnesota, USA (N. Lehnertz, X. Wang, J. Garfin, J. Zipprich, B. VonBank, K. Martin, D. Eikmeier, C. Medus, B. Wiedinmyer, C. Bernu, M. Plumb, K. Pung, K.E. Smith, K. Como-Sabetti, K. Ehresmann, R. Danila, R. Lynfield); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (J. Taylor, M.A. Honein, R. Carter, D. MacCannell)

Main Article


Features of outbreaks and convenience samples of specimens collected and characterized by whole-genome sequencing at LTCFs, correctional facilities, and meat-processing plants in Minnesota, USA, March 6–June 30, 2020*

Outbreak facility
Total confirmed outbreak cases at facility, no.
Total samples successfully sequenced from facility, no. (%)
Role at facility
Total outbreak cases at facility confirmed by role, no.
Total samples successfully sequenced by role, no. (%)
A 89 27 (30.3) Staff 38 10 (26.3)
Residents 51 17 (33.3)
B 190 82 (43.2) Staff 76 5 (6.6)
Residents 114 77 (67.5)
C 139 32 (23.0) Staff 56 23 (41.0)
Residents 83 9 (10.8)
D 74 39 (52.7) Staff 21 3 (14.2)
Residents 53 36 (67.9)

*No cases or samples sequenced after June 30, 2020, are included in study. An outbreak is defined as closed if there are no new coronavirus disease cases for 28 days after the onset date of the last case. The outbreak at correctional facility A was considered closed as of July 20; the outbreak at correctional facility B was considered closed as of August 5. The outbreaks at processing plants A and B were considered ongoing as of November 6, 2020. LTCF, long-term care facility; NA, not applicable.

Main Article

Page created: May 19, 2021
Page updated: July 18, 2021
Page reviewed: July 18, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.