Biological Factors in Malaria Control

L. W. Hackett
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When I went to Italy in 1924, one of my first trips was to the delta of the Po, formerly a highly malarious area of brackish lagoons and marshes; now transformed by numberless canals and giant pumping stations into a fertile, healthy and densely populated farmland. What surprised me most as a malariologist was the incredible quantity of anophelines, which could not in any way be counted but only estimated, at so many tens of thousands per stable or pigsty. I had the same sort of discomfited feeling that an American health officer once told me he experienced on his first visit to Geneva, observing one of the healthiest populations in the world unprotected by any elaborate sanitary organization, ignorant of most of those beneficent oppressions so enthusiastically imposed upon our own communities in the name of public health, and happily drinking untreated water from a lake full of traffic, bathers and miscellaneous pollution.

Author Notes

Assistant Director, International Health Division, Rockefeller Foundation.