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Volume 5, Number 6—December 1999

HIV Infection as a Risk Factor for Shigellosis1

Jefferson T. Baer*, Duc J. Vugia*†‡, Arthur L. Reingold*§, Tomas Aragon¶, Frederick J. Angulo#, and Williamson Z. Bradford*§**Comments to Author 
Author affiliations: *California Emerging Infections Program, San Francisco, California, USA; †California Department of Health Services, Berkeley, California, USA; ‡University of California, San Francisco, California, USA; §School of Public Health, University of California, Berkeley, California, USA; ¶San Francisco Department of Public Health, San Francisco, California, USA; #Centers for Disease Control and Prevention, Atlanta, Georgia, USA; and **IntraBiotics Pharmaceuticals, Mountain View, California, USA

Main Article

Table 2

Annual incidence rates of culture-confirmed shigellosis per 100,000 population for selected groups, 1996

Group San Francisco County Alameda County FoodNet sitesa United States
Overall rate 30.9 10.5b 7.3 5.3
Male 43.2 9.2b 7.4 3.3
Female 19.1 11.8b 7.1 3.9
Age groups (yrs)

<5 82.5 47.9b 36.7 16.7

5-14 22.1 17.1 12.6 6.8

15-24 19.9 9.3b 5.3 2.4

25-39 49.9 7.6b 5.6 2.7

40-64 25.9 3.3b 2.4 1.0

65+ 2.5 4.0 1.5 0.7

aDoes not include California.
bComparison of rates in San Francisco and Alameda Counties, p value <.05.

Main Article

1Presented in part at the International Conference on Emerging Infections, March 1998, Atlanta, Georgia.

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