Volume 27, Number 8—August 2021
Research
Transmission Dynamics of Severe Acute Respiratory Syndrome Coronavirus 2 in High-Density Settings, Minnesota, USA, March–June 2020
Nicholas B. Lehnertz
, 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
, 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
Table
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. (%) |
|---|---|---|---|---|---|
| LTCF | |||||
| 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.
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