“Only recently have educators turned their attention to the physical condition of the average school child, and in the south they have done so largely because of the discovery of the enormously important part played by hookworm. Pupils at school become infected, with the school as a site of exchange. In a comparatively short time the premises around the homes of all the schoolchildren are polluted, and we have the change (which anemia produces) coming over the community. Progress of the children in school is retarded; the daily attendance is poor; the health of the community is below normal; the crops are not so well cultivated; the houses are not so well provided for or kept; the whole community is sick and doesn’t know it. The economic loss is tremendous.”

Scientific American, March 1915

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