Volume 29, Number 8—August 2023
Research Letter
Asymptomatic Healthcare Worker PCR Screening during SARS-CoV-2 Omicron Surge, Germany, 2022
Ralph Bertram, Wolfgang Hitzl, Eike Steinmann, and Joerg Steinmann
Table
Characteristics and key indicators for a surveillance study among asymptomatic healthcare workers during SARS-CoV-2 Omicron surge, Germany, 2022*
| Characteristic | Value |
|---|---|
| Total no. PCR tests | 398,784 |
| Median no. tests/wk (IQR) | 7,559 (6,834–8,139) |
| Total no. PCR-positive tests |
3,555 |
| Median positivity rate, % (IQR) | 0.9 (0.45–1.17) |
| Minimum, January 3–9 | 0.25 |
| Maximum, March 14–20 |
1.89 |
| Total no. HCWs tested | 9,515 |
| No. (%) infected | 2,782 (29.2) |
| No. (%) HCWs with >2 infections |
463 (4.87) |
| Sex, no. (%) | |
| M | 705 (25.3) |
| F |
2,077 (74.7) |
| Median age, y (IQR) | 42 (30–53) |
| Median Ct value (IQR) |
30 (27–32) |
| No. (%) completing immunization regimen† | 8,926 (93.8) |
*Ct, cycle threshold; HCW, healthcare worker. †As of March 2022 (Appendix Table 2).
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Page updated: July 20, 2023
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