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Volume 16, Number 3—March 2010

Letter

Yersinia pseudotuberculosis and Y. enterocolitica Infections, FoodNet, 1996–2007

Cherie Long, Timothy F. Jones, Duc J. Vugia, Joni Scheftel, Nancy A. Strockbine, Patricia Ryan, Beletshachew Shiferaw, Robert V. Tauxe, and Elisabeth A. MungaiComments to Author 
Author affiliations: Georgia Department of Human Resources, Atlanta, Georgia, USA (C. Long); Atlanta Research and Education Foundation, Atlanta (C. Long); Tennessee Department of Health, Nashville, Tennessee, USA (T.F. Jones); California Department of Public Health, Richmond, California, USA (D.J. Vugia); Minnesota Department of Health, St. Paul, Minnesota, USA (J. Scheftel); Centers for Disease Control and Prevention, Atlanta (N. Strockbine, R.V. Tauxe, L.H. Gould); Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA (P. Ryan); Oregon Department of Human Services, Portland, Oregon, USA (B. Shiferaw)

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Table

Comparison of Yersinia pseudotuberculosis and Y. enterocolitica infections, FoodNet, 1996–2007*

Characteristic Y. pseudotuberculosis Y. enterocolitica p value
No. infections 18 1,355
Annual average incidence† (range) 0.04 (0.00–0.10) 3.45 (0.77–7.87)
Median patient age, y (range) 47 (16–86) 6 (0–94) <0.0001
Male sex, no. (%) patients 12 (67) 672 (50) 0.1638
White race, no. (%) patients 10 (56) 480 (35) 0.0115
Western region of USA (CA, OR), no. (%) 10 (56) 308 (22) 0.0024
Winter season, no. (%) 8 (44) 536 (40) 0.8091
Invasive specimen collection site, no. (%) 12 (67) 106 (8) <0.0001
Hospitalized, no. (%) patients 13 (72) 411 (30) 0.0003
Median hospitalization, d (range) 9 (2–35) 4 (0–107) 0.0118
Died, no. (%) patients 2 (11) 15 (1) 0.0248

*CA, California; OR, Oregon.
†Cases per 1,000,000 persons.

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