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LEPTOSPIROSIS ON OAHU: AN OUTBREAK ASSOCIATED WITH FLOODING OF A UNIVERSITY CAMPUS

KATE GAYNORDisease Outbreak Control Division, Hawaii State Department of Health, Honolulu, Hawaii; Epidemic Intelligence Service, Office of Workforce and Career Development, Career Development Division, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Public Heath Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia

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ALAN R. KATZDisease Outbreak Control Division, Hawaii State Department of Health, Honolulu, Hawaii; Epidemic Intelligence Service, Office of Workforce and Career Development, Career Development Division, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Public Heath Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia

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SARAH Y. PARKDisease Outbreak Control Division, Hawaii State Department of Health, Honolulu, Hawaii; Epidemic Intelligence Service, Office of Workforce and Career Development, Career Development Division, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Public Heath Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia

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MICHELE NAKATADisease Outbreak Control Division, Hawaii State Department of Health, Honolulu, Hawaii; Epidemic Intelligence Service, Office of Workforce and Career Development, Career Development Division, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Public Heath Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia

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THOMAS A. CLARKDisease Outbreak Control Division, Hawaii State Department of Health, Honolulu, Hawaii; Epidemic Intelligence Service, Office of Workforce and Career Development, Career Development Division, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Public Heath Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia

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PAUL V. EFFLERDisease Outbreak Control Division, Hawaii State Department of Health, Honolulu, Hawaii; Epidemic Intelligence Service, Office of Workforce and Career Development, Career Development Division, Centers for Disease Control and Prevention, Atlanta, Georgia; Department of Public Heath Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia

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On October 31, 2004, a stream overflowed, flooding the University of Hawaii (UH) campus. On November 19, 2004, a possible flood-related leptospirosis case (Patient 1) was reported to the Hawaii State Department of Health (HDOH). Surveillance for febrile illness was established through an Internet questionnaire. Active case finding was conducted among groups involved in the flood clean-up. Free leptospirosis testing was offered by HDOH. Patient 1’s illness was confirmed as leptospirosis by microscopic agglutination testing. A total of 271 persons responded to the Internet survey, of whom 90 (33%) reported a febrile illness within 30 days of contact with flood water. Forty-eight respondents (18%) were tested for leptospirosis. One additional acute leptospirosis case was identified. Patient 2 was epidemiologically linked to Patient 1. Health care providers should maintain a high level of suspicion for leptospirosis after flooding events, and local public health officials should promote leptospirosis awareness among flood-affected populations.

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