Filariasis Control by DDT Residual House Spraying, St. Croix, Virgin Islands: II. Results

1 January 1949

journal article
research article
Published by JSTOR in Public Health Reports®

Vol. 64 (27) , 863-875
https://doi.org/10.2307/4587014

Abstract

A survey was made of the presence of Culex quinquefasciatus. the chief vector in bancroftian filariasis, in houses before and after spraying with DDT. The population of the mosquito was reduced 50%, the number of houses in which the mosquito was present was reduced 57%, and the number of mosquitoes containing forms of Wuchereria bancrofti was reduced 50%. In no instance was an infective stage larva found in a mosquito. Blood smears taken at night from 1311 children were examined for microfilaria before and after the DDT spraying. The infection rate in this group dropped from 13.3 to 10.6% and the avg. microfilaria count from 74.1 per 0.04 ml. of blood to 45.8. [See also in this issue entry 22030.].

Keywords

FILARIASIS

This publication has 1 reference indexed in Scilit:

An Investigation of the House-Frequenting Habits of Mosquitoes of the British Guiana Coastland in Relation to the Use of DDT
The American Journal of Tropical Medicine, 1948