Volume 28, Supplement—December 2022
SUPPLEMENT ISSUE
Surveillance
Lessons Learned from CDC’s Global COVID-19 Early Warning and Response Surveillance System
Philip M. Ricks
, Gibril J. Njie, Fatimah S. Dawood, Amy E. Blain, Alison Winstead, Adebola Popoola, Cynthia Jones, Chaoyang Li, James Fuller, Puneet Anantharam, Natalie Olson, Allison Taylor Walker, Matthew Biggerstaff, Barbara J. Marston, Ray R. Arthur, Sarah D. Bennett, and Ronald L. Moolenaar
, Gibril J. Njie, Fatimah S. Dawood, Amy E. Blain, Alison Winstead, Adebola Popoola, Cynthia Jones, Chaoyang Li, James Fuller, Puneet Anantharam, Natalie Olson, Allison Taylor Walker, Matthew Biggerstaff, Barbara J. Marston, Ray R. Arthur, Sarah D. Bennett, and Ronald L. Moolenaar
Table 2
Hours worked by CDC EWARS team during COVID-19 epidemiologic weeks 3–9, January 20–March 7, 2020*
| Indicator | Epidemiologic week; beginning date |
Total | ||||||
|---|---|---|---|---|---|---|---|---|
| 3; Jan 25 | 4; Feb 1 | 5; Feb 8 | 6; Feb 15 | 7; Feb 22 | 8; Feb 29 | 9; Mar 7 | ||
| No. team members | 1 | 4 | 5 | 6 | 7 | 7 | 7 | 9† |
| Average no. hours worked/d‡ | 10.0 | 10.2 | 9.2 | 7.6 | 6.7 | 6.8 | 7.0 | 8.2 |
| Total person-hours/wk | 70 | 184 | 294 | 235 | 296 | 302 | 345 | 1,726 |
| Cumulative no. reporting countries | 13 | 25 | 28 | 29 | 32 | 63 | 103 | – |
| No. new cases | 38 | 135 | 186 | 331 | 1,037 | 5,238 | 17,346 | 24,311 |
*Data are based on a 7-day work week. CDC, US Centers for Disease Control and Prevention; EWARS, early warning and response surveillance; –, not applicable. †The team comprised 9 different persons during study period. ‡Accounts for the average no. hours each person worked per day during the week.
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