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Volume 30, Number 3—March 2024
Research

Wastewater Surveillance for Identifying SARS-CoV-2 Infections in Long-Term Care Facilities, Kentucky, USA, 2021–2022

James W. Keck1Comments to Author , Reuben Adatorwovor, Matthew Liversedge2, Blazan Mijotavich, Cullen Olsson, William D. Strike, Atena Amirsoleimani, Ann Noble, Soroosh Torabi, Alexus Rockward, Mohammad Dehghan Banadaki, Ted Smith, Parker Lacy, and Scott M. Berry
Author affiliations: University of Kentucky, Lexington, Kentucky, USA (J.W. Keck, R. Adatorwovor, M. Liversedge, C. Olsson, W.D. Strike, A. Amirsoleimani, A. Noble, S. Torabi, A. Rockward, M. Dehghan Banadaki, S.M. Berry); University of Louisville, Louisville, Kentucky, USA (T. Smith); Trilogy Health Services, LLC, Louisville (P. Lacy)

Main Article

Table 2

SARS-CoV-2 case clusters and associated wastewater signal characteristics at 4 long-term care facilities, Kentucky, USA, 2021–2022*

Characteristic Facility
B C C D
Case cluster
  No. residents infected 14 10 7 4
  Duration, d
 15
 47
 24
 13
Wastewater signal
  Period since previous positive signal, d 6 5 6 23
  Magnitude of previous signal, genome copies/mL 250.7 29.8 177.9 6.8
  Signal on day of initial positive clinical test, genome copies/mL 208.1 NA 53.5 NA
  Time from initial case to positive signal, d 0 2 0 12
  Signal range, genome copies/mL 0–467 0–663 0–687 0–39
  Fraction of samples with SARS-CoV-2 detected 6/8 12/26 8/13 1/4

*Case clusters were defined as >1 resident testing positive for SARS-CoV-2 within 14 d at the same facility. Two clusters occurred at the same facility at different time points. NA, not applicable because no wastewater sample collected that day.

Main Article

1Current affiliation: WWAMI School of Medical Education, University of Alaska Anchorage, Anchorage, Alaska, USA.

2Current affiliation: College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.

Page created: February 12, 2024
Page updated: February 22, 2024
Page reviewed: February 22, 2024
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