Abstract
BETWEEN October 1959 and November 1960 blood films were examined for parasites from 164 Philippine long-tailed macaques (Macaca irus) at the University of California Medical Center. Ten of the animals were found infected with species of Plasmodium. Morphological investigations suggested that several species were present either as single infections or, in several monkeys, as multiple infections. Sub-inoculations into uninfected monkeys were used to help determine the species. Blood from two animals (MK 116 and MK 119, originally from the Cebu area of the central Philippines) was also sent to the Laboratory of Parasite Chemotherapy in Memphis. This communication has been prepared primarily to record the isolation of Plasmodium knowlesi from one of the Philippine macaques. This finding represents a considerable extension of the known range of this parasite which is transmissible to man experimentally and perhaps also in Nature.
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References
Mohiuddin, A., Rivista di Malariologia, 36, 203 (1957).
Yokogawa, S., Kobayashi, H., Ro, M., and Yumoto, Y., Taiwan Igakkai Zasshi, 40 2173 (1941). Hsien-chen, Hsieh, Formosan Science, 14, 477 (1960).
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LAMBRECHT, F., DUNN, F. & EYLES, D. Isolation of Plasmodium knowlesi from Philippine Macaques. Nature 191, 1117–1118 (1961). https://doi.org/10.1038/1911117a0
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DOI: https://doi.org/10.1038/1911117a0
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