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Invasive Group A Streptococcal Infections in the San Francisco Bay Area, 1989-99
D. J. Passaro, D. S. Smith, E. C. Hett, A. L. Reingold, P. Daily, C. A. van Beneden and D. J. Vugia
Epidemiology and Infection
Vol. 129, No. 3 (Dec., 2002), pp. 471-478
Published by: Cambridge University Press
Stable URL: http://www.jstor.org/stable/3865512
Page Count: 8
You can always find the topics here!Topics: Infections, Predisposing factors, Epidemiology, Disease risks, Mortality, Diseases, Surveillance, Native Americans, Heart diseases, Public health
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To describe the epidemiology of invasive group A streptococcal (iGAS) infections in the San Francisco Bay Area, population-based active surveillance for laboratory-confirmed iGAS was conducted by the California Emerging Infections Program in three California counties. From January 1989 to December 1999, 1415 cases of iGAS were identified. Mean iGAS incidence was 4·06/100 000 person-years and case fatality ratio was 13%, with no linear trends over time. Incidence was lowest in adolescents, was higher in men than women (4·4 vs. 3·2/100 000 person-years), and was higher in African-Americans (6·7) than in non-Hispanic (4·1) or Hispanic (3·4) Whites, Asians (2·2) or Native Americans (1·7/100 000 person-years). Injecting drug use was the riskiest underlying condition and was associated with the highest attributable risk. Cases were associated with several underlying conditions, but 23% occurred in previously healthy persons. From 1989-1999, iGAS infections in the San Francisco Bay Area became neither more common nor more deadly.
Epidemiology and Infection © 2002 Cambridge University Press