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Volume 18, Number 10—October 2012
CME ACTIVITY - Research

Epidemiology of Foodborne Norovirus Outbreaks, United States, 2001–2008

Aron J. HallComments to Author , Valerie G. Eisenbart, Amy Lehman Etingüe, L. Hannah Gould, Ben A. Lopman, and Umesh D. Parashar
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A.J. Hall, V.G. Eisenbart, A. Lehman Etingüe, L.H. Gould, B.A. Lopman, U.D. Parashar); University of Illinois, Urbana, Illinois, USA (V.G. Eisenbart); and North Carolina State University, Raleigh, North Carolina, USA (A. Lehman Etingüe)

Main Article

Table 2

Settings of food preparation in foodborne norovirus outbreaks, United States, 2001–2008*

Setting† No. (%) outbreaks Median no. cases/outbreak (IQR)
Commercial 2,432 (83) 14 (7–26)

Restaurant or delicatessen

 1,824 (62) 12 (6–23)

Caterer

 313 (11) 25 (16–40)

Banquet facility

 110 (4) 30 (19–59)

Grocery store

 105 (4) 13 (9–18)

Commercial product served without further preparation

 42 (1) 20 (11–30)

Wedding reception

 22 (1) 25 (18–35)

Fair, festival, other temporary/mobile service

 16 (1) 21 (6–50)
Institutional 248 (8) 36 (19–71)

School

 91 (3) 43 (29–92)

Nursing home

 66 (2) 35 (19–60)

Camp

 29 (1) 34 (18–53)

Noncafeteria workplace

 18 (1) 23 (13–56)

Prison or jail

 15 (1) 58 (23–137)

Workplace cafeteria

 12 (0.4) 22 (18–78)

Hospital

 11 (0.4) 53 (16–72)

Day care center

 4 (0.1) 31 (19–65)

Office setting

 2 (0.1) 18 (15–21)
Private 336 (11) 16 (10–26)

Private home

 296 (10) 15 (9–25)

Church, temple, or other place of worship

 31 (1) 23 (12–40)

Picnic

 9 (0.3) 19 (12–32)

Other/Unknown

 267 (9) 28 (14–49)
All outbreaks 2,922 (100) 14 (8–30)

*IQR, interquartile range.
†Multiple locations may be implicated in a given outbreak.

Main Article

Page created: September 17, 2012
Page updated: September 17, 2012
Page reviewed: September 17, 2012
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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