Incidence of Malaria in Tropical Africa

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THE conventional ‘parasite-rate' (percentage proportion of children aged 3–10 years in whose blood malaria parasites are detected by a single examination) may be a misleading standard of qualitative measurement giving a distorted idea of the amount of malaria in a locality. But in practice a reduction from 70 to 40 per cent is often claimed to be evidence of effective malaria control, and we are led to believe that a figure of 5 per cent is a splendid achievement indicating a very low malaria incidence.

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    Ann. Trop. Med. Parasit., 41, 380.

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WALTON, G. Incidence of Malaria in Tropical Africa. Nature 162, 114 (1948) doi:10.1038/162114a0

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