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Am. J. Trop. Med. Hyg., 18(5), 1969, pp. 676-682
Copyright © 1969 by The American Society of Tropical Medicine and Hygiene

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An Epidemic of Intestinal Capillariasis in Man

A Study in a Barrio in Northern Luzon*,{dagger},{ddagger},

Roger Detels, Laura Gutman, Jovita Jaramillo, Ernesto Zerrudo, Tirso Banzon, Julio Valera, K. Darwin Murrell, John Cross AND Jacinto J. Dizon
Disease Intelligence Center, Department of Health, Republic of the Philippines, the United States Naval Medical Research Unit No. 2, Taipei, Taiwan, and the Department of Preventive Medicine, University of Washington, Seattle, Washington

An epidemic of a chronic wasting disease, caused by a previously unknown nematode. Capillaria philippinensis, was discovered to be occurring along the northwest coast of Luzon. Philippines. A study was undertaken to elucidate by epidemiologic methods the possible mode of spread of the new disease, intestinal capillariasis, in Pudoc West, the site of the first cases and the most heavily infected village. A census of the village was conducted and the date of onset of capillariasis determined by interview for each case. Stool surveys were done of the entire village and individual families followed more closely for occurrence of new cases. Thirty-two percent of the population and capillariasis during the 21/2 years since the beginning of the epidemic. The fatality rate in males was 35%, 19% in females. An analysis of initial cases within households revealed that most were males, usually between the ages of 20 and 49, suggesting a relation between initial infection and occupation. The distribution of age and sex in subsequent cases and the general population were similar. In addition, the pattern of spread within families and within the village also suggested a direct mode of transmission of the disease.


* This study was supported in part through funds provided by the Bureau of Medicine and Surgery, Navy Department, for Work Unit MR005.09-0090 and training grant TIAI 206 from the National Institute of Allergy and Infectious Diseases, National Institutes of Health, U. S. Public Health Service.


{dagger} The opinions and assertions contained herein are those of the authors and are not to be construed as official or reflecting the views of the Navy Department or the Naval Service at large.


{ddagger} Please address requests for reprints to Publications Office, NAMRU-2, Box 14, APO San Francisco, California 96263.




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L.-H. LU, M.-R. LIN, W.-M. CHOI, K.-P. HWANG, Y.-H. HSU, M.-J. BAIR, J.-D. LIU, T.-E. WANG, T.-P. LIU, and W.-C. CHUNG
HUMAN INTESTINAL CAPILLARIASIS (CAPILLARIA PHILIPPINENSIS) IN TAIWAN.
Am J Trop Med Hyg, May 1, 2006; 74(5): 810 - 813.
[Abstract] [Full Text] [PDF]


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Copyright © 1969 by the American Society of Tropical Medicine and Hygiene.