American Journal of Epidemiology Vol. 102, No. 4: 303-310
Copyright © 1975 by The Johns Hopkins University School of Hygiene and Public Health
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LEPROSY IN LOUISIANA, 18551970
AN EPIDEMIOLOGIC STUDY OF LONG-TERM TRENDS
1Formerly Chief Special Pathogens Branch, Bacterial Diseases Division, Bureau of Epidemiology, Center for Disease Control Atlanta, GA 30333
2Epidemiology Department, Clinical Branch, U.S. Public Health Service Hospital Carville, LA 70721
Address reprint requests to: Roger A. Feldman, M.D., Bureau of Tropical Diseases, Center for Disease Control, Atlanta, GA 30333.
Feldman, R. A. (Bureau of Tropical Diseases. Center for Disease Control, Atlanta. GA 30333), and M. Sturdivant. Leprosy in Louisiana, 18551970: an epidemiologic study oflong-term trends. Am J Epidemiol 102:303310.1975.
Study of a well known focus of leprosy in Louisiana in 18551970 showed a decrease in incidence which began before the use of chemotherapy. Many of the cases had onset in a limited area of Louisiana, French Louisiana, where there was a high incidence of multiple family cases. Overall incidence rates were found to be decreasing for each cohort of birth, and within cohorts after 1920, the highest incidence rates were in the age group1019. A high incidence rate was found for cases with onset in the years 19001929; rather than an epidemic, this was probably related to bias in the recording of year of onset. Although persistent for a long period, the focus remained limited in geographic extent and seems to be disappearing.
epidemiology; family history; leprosy
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