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Article
March 17, 1923

ASCERTAINING THE SPLENIC INDEX AND THE MOSQUITO FOCUS FROM SCHOOLCHILDREN

JAMA. 1923;80(11):740-743. doi:10.1001/jama.1923.02640380004002
Abstract

Schoolchildren can be utilized by the epidemiologist and the health officer not only in estimating the amount of malaria in a community, but also, at times, to reveal the source of the anophelines responsible for their infection. A striking demonstration of this was made at São Paulo, Brazil, in one of the field surveys made by the Instituto de Hygiene in cooperation with the International Health Board.

Health officers and plantation managers and employers of labor in regions where there is endemic malaria not only require an index of the degree of malaria, as affected by control measures, but also need to know where the dangerous breeding places are, for often money is wasted in efforts on places in which malaria-bearing anophelines do not propagate at all or in but small and unimportant numbers.

In the survey in question, the customary method of spleen examination was pursued, and blood specimens

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