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Volume 27, Number 2—February 2021
Dispatch

Non-Norovirus Viral Gastroenteritis Outbreaks Reported to the National Outbreak Reporting System, USA, 2009–2018

Claire P. MattisonComments to Author , Molly Dunn, Mary E. Wikswo, Anita Kambhampati, Laura Calderwood, Neha Balachandran, Eleanor Burnett, and Aron J. Hall
Author affiliations: Centers for Disease Control and Prevention, Atlanta, GA, USA (C.P. Mattison, M. Dunn, M.E. Wikswo, A. Kambhampati, L. Calderwood, N. Balachandran, E. Burnett, A.J. Hall); Cherokee Nation Assurance, Arlington, Virginia, USA (C.P. Mattison, A. Kambhampati, N. Balachandran); Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee, USA (L. Calderwood)

Main Article

Table 2

Summary of outbreak case characteristics by suspected or confirmed outbreak etiology for outbreaks reporting adenovirus, astrovirus, rotavirus, or sapovirus — National Outbreak Reporting System, 2009–2018*

Characteristic Etiology
Adenovirus Astrovirus Rotavirus Sapovirus All single-etiology Multiple etiologies†
No. outbreak cases
Total 83 275 2,526 3,112 5,996 5,278
Median 19 20.5 16 17 17 18
Range
13–32
9–84
2–82
2–528
2–528
2–2,274
Sex
No. cases with information 82 162 1,750 1,694 3,688 4,070
F 36 (43.9) 98 (60.5) 1,171 (66.9) 1,062 (62.7) 2,367 (64.2) 2,365 (58.1)
M
46 (56.1)
64 (39.5)
579 (33.1)
632 (37.3)
1,321 (35.8)
1,705 (41.9)
Age group, y
No. cases with information 40 142 1,161 2,071 3,414 3,676
<1 0 3 (2.1) 47 (4.0) 3 (0.1) 53 (1.6) 109 (3.0)
1–4 1 (2.5) 17 (12.0) 222 (19.1) 75 (3.6) 314 (9.2) 375 (10.2)
5–9 7 (17.5) 27 (19.0) 185 (15.9) 350 (16.9) 569 (16.7) 1,817 (49.4)
10–49 17 (42.5) 66 (46.5) 221 (19) 854 (41.2) 1,158 (33.9) 1,034 (28.1)
>50
15 (37.5)
29 (20.4)
487 (42.0)
789 (38.1)
1,320 (38.7)
340 (9.3)
Clinical outcome‡
Hospitalization 21/71 (29.6) 0/221 (0) 87/2,030 (4.2) 17/2,154 (0.8) 125/4,476 (2.8) 44/4,189 (1.1)
Death 2/71 (2.8) 0/275 (0) 8/2,127 (0.4) 2/2,283 (0.09) 12/4,756 (0.25) 5 /4,273 (0.1)

*Values are no. (%) unless otherwise indicated.
†Outbreaks attributable to adenovirus (14), astrovirus (15), rotavirus (34), or sapovirus (33) along with >1 other etiology. The most common combinations reported were rotavirus and norovirus (19 outbreaks); sapovirus and norovirus (7 outbreaks); sapovirus, norovirus, and astrovirus (7 outbreaks); and adenovirus and norovirus (4 outbreaks).
‡No. cases/no. cases with data available (%).

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Page created: January 04, 2021
Page updated: January 24, 2021
Page reviewed: January 24, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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