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. 2005 Jul;11(7):1093-6.
doi: 10.3201/eid1107.040889.

Household transmission of gastroenteritis

Sharon Perry  1 , Maria de la Luz Sanchez, Philip K Hurst, Julie Parsonnet
Affiliations

Household transmission of gastroenteritis

Sharon Perry et al. Emerg Infect Dis. 2005 Jul.

Abstract

Transmission of infectious gastroenteritis was studied in 936 predominately Hispanic households in northern California. Among 3,916 contacts of 1,099 primary case-patients, the secondary attack rate was 8.8% (95% confidence interval 7.9-9.7); children had a 2- to 8-fold greater risk than adults. Bed-sharing among children in crowded homes is a potentially modifiable risk.

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Figures

Figure 1
Figure 1
Serial onset of 344 secondary cases in 936 households. A secondary case was defined as onset of symptoms at least 2 days after onset and not more than 5 days after cessation of symptoms in a primary case.
Figure 2
Figure 2
Hazard of secondary gastroenteritis by age group. Cumulative hazard, the cumulative proportion of contacts classified as secondary cases. Household risk periods, defined as ending when all members had been symptom-free for ≥96 hours, lasted a median of 9 days (interquartile range 7–13).
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