Volume 27, Number 2—February 2021
Dispatch
Non-Norovirus Viral Gastroenteritis Outbreaks Reported to the National Outbreak Reporting System, USA, 2009–2018
Claire P. Mattison
, Molly Dunn, Mary E. Wikswo, Anita Kambhampati, Laura Calderwood, Neha Balachandran, Eleanor Burnett, and Aron J. Hall
, Molly Dunn, Mary E. Wikswo, Anita Kambhampati, Laura Calderwood, Neha Balachandran, Eleanor Burnett, and Aron J. Hall
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 (%).
Page created: January 04, 2021
Page updated: January 24, 2021
Page reviewed: January 24, 2021
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