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Volume 28, Supplement—December 2022
SUPPLEMENT ISSUE
Synopsis

Lessons Learned from CDC’s Global COVID-19 Early Warning and Response Surveillance System

Philip M. RicksComments to Author , 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
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P.M. Ricks, G.J. Njie, F.S. Dawood, A.E. Blain, A. Winstead, A. Popoola, C. Li, J. Fuller, P. Anantharam, N. Olson, A. Taylor Walker, M. Biggerstaff, B.J. Marston, R.R. Arthur, S.D. Bennett, R.L. Moolenaar); Agency for Toxic Substances and Disease Registry, Atlanta (C. Jones)

Main Article

Table 3

Data completeness collected by CDC EWARS system for selected variables during epidemiologic weeks 3 thru 9, January 20–March 7, 2020*

Variables Epidemiologic week
3 4 5 6 7 8 9
Total new cases
38
135
186
331
1,037
5,238
17,346
Patient demographics
Age 33 (86.8) 106 (78.5) 87 (46.8) 97 (29.3) 156 (15) 156 (3) 325 (1.9)
Sex 38 (100) 115 (85.2) 91 (48.9) 97 (29.3) 157 (15.1) 190 (3.6) 291 (1.7)
Nationality 37 (97.4) 66 (48.9) 54 (29) 52 (15.7) 48 (4.6) 82 (1.6) 121 (0.7)
Place of residence
27 (71.1)
39 (28.9)
28 (15.1)
17 (5.1)
61 (5.9)
161 (3.1)
47 (0.3)
Clinical indicators
Date of illness onset 16 (42.1) 74 (54.8) 58 (31.2) 59 (17.8) 57 (5.5) 60 (1.2) 36 (0.2)
Date person sought care 20 (52.6) 67 (49.6) 58 (31.2) 45 (13.6) 13 (1.3) 13 (0.3) 8 (0.1)
Fever 21 (55.3) 46 (34.1) 45 (24.2) 32 (9.7) 29 (2.8) 28 (0.5) 27 (0.2)
Cough
12 (31.6)
33 (24.4)
34 (18.3)
27 (8.2)
20 (1.9)
30 (0.6)
15 (0.1)
Exposures
Travel, China 38 (100) 126 (93.3) 95 (51.1) 77 (23.3) 59 (5.7) 63 (1.2) 27 (0.2)
Travel, excluding China 1 (2.6) 20 (14.8) 46 (24.7) 43 (13) 34 (3.3) 190 (3.6) 297 (1.7)
Contact with confirmed COVID-19 case 15 (39.5) 65 (48.2) 142 (76.3) 153 (46.2) 386 (37.2) 135 (2.6) 74 (0.4)
Any exposure information† 38 (100) 129 (95.6) 161 (86.6) 163 (49.2) 389 (37.5) 274 (5.2) 336 (1.9)
First exposure date 3 (7.9) 10 (7.4) 13 (7) 6 (1.8) 0 0 0
Last exposure date 18 (47.4) 63 (46.7) 26 (14) 16 (4.8) 0 1 (<0.001) 0

*Values are no. (%) of total new cases per week. Total data points collected, n = 24,311. CDC, US Centers for Disease Control and Prevention; EWARS, Early Warning and Response Surveillance. †Includes any information regarding travel or contact with a confirmed case.

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Page created: June 01, 2022
Page updated: August 16, 2022
Page reviewed: August 16, 2022
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