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Amebiasis and Hookworm Infection as Found in Approximately 50,000 Fecal Examinations in Mississippi¹

Figures portraying the incidence of infections by intestinal parasites in the general population of a given locality are of necessity fragmentary and lack accuracy. The data reported here are presented as a small addition to the information available on the prevalence of intestinal parasitic infections in Mississippi and as a report on the practical application of the zinc sulphate centrifugal floatation technic in routine diagnostic work.

The fecal specimens of this series were submitted from every section of the state of Mississippi and were all examined in the State Hygienic Laboratory, Jackson, Mississippi during a 33-month period. Duplicate specimens were examined from a few individuals but in the majority of the cases single specimens were examined. Only one technic for the diagnosis of intestinal parasitic infections was used, namely, the zinc sulphate centrifugal floatation technic. Splendid cooperation was obtained from the county health officers and private physicians of the state in submitting satisfactory stool specimens but many of the specimens were old when received due to transportation facilities.

Received January 1, 1942.
¹ Read at the 37th annual meeting of the American Society of Tropical Medicine, at St. Louis, Mo., November 10–13, 1941.