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Plasmodium ovale Stephens 1922

Published online by Cambridge University Press:  06 April 2009

S. P. James,
W. D. Nicol and
P. G. Shute
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Extract

In 1922 J. W. W. Stephens the morphological characters of the asexual forms of a malaria parasite which he had studied in the blood of a patient from East Africa were different from those of any usually accepted species, and he proposed to establish the parasite as a new species with the name Plasmodium ovale. In 1927, in collaboration with D. U. Owen, he confirmed and extended the description from the study of a case infected in Nigeria. In 1930 Warrington Yorke and D. U. Owen studied another case from Nigeria and, by utilising this patient's blood in the practice of malariatherapy, they were able to show that the peculiar morphological features of the asexual stages of the parasite remain constant when it is passed from person to person by direct blood inoculation.

Information

Type
Research Article
Information
Parasitology , Volume 25 , Issue 1 , February 1933, pp. 87 - 95
Copyright
Copyright © Cambridge University Press 1933

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References

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1 Some workers who have written to us have thought that the name P. ovale indicates that the parasite is often oval in shape. This is not so.Google Scholar

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2 See p. 87, note 2.