Abstract
The search for substitutes for chlorinated hydrocarbon insecticides has led to the trial of organophosphorus compounds. Fenthion is promising as a residual spray in malaria eradication, but information on its human toxicology is scanty. In the work reported in this paper the inhabitants of a Nigerian village have been studied during a trial of fenthion. Moderate depressions of plasma cholinesterase were observed for five weeks after spraying, though there was no effect on red blood cell cholinesterase. A search was also made for other possible effects, including measurements of peak expiratory flow rate. No serious toxic effects were found.
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Selected References
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