Laboratory Investigation of a Poisoning Epidemic in Sierra Leone

Robert H. Hill 1, Jr., Cynthia C. Alley 1, David L. Ashley1, R ichard E. Clinel, Susan L. Head~, Larry L. Needham~, and Ruth A. Etzel 2 Division of Environmental Health Laboratory Sciences 1, Division of Environmental Hazards and Health Effects 2, Center for Environmental Health and Injury Control, Centers for Disease Control, Public Health Service, U.S. Department of Health and Human Services, Atlanta, Georgia 30333