Attenuation of Virulence of Trypanosoma Brucei Correlated with Loss of Salivary Gland Infection by a Tsetse Fly

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Date
1953
Authors
Eric B.
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Abstract
As is well known, the final infective stage of development of the polymorphic trypanosomes in the tsetse-fly takes place only in the salivary glands, and the presence of the metacyclic trypanosomes can be readily demonstrated by inducing the fly to " probe" with its proboscis on a glass slide (BURTT, 1946). In laboratory experiments the infection in the fly usually persists throughout its life, and as far as I am aware, no instance of a fly losing its salivary gland infection has hitherto been recorded, though DUKE (1933) has reported the disappearance of the flagellates from the stomach of an infected fly.
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Bulletin, 47 (3), p. 246-247