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The Susceptibility of Autogenous and Anautogenous Races of Culex pipiens to Infection with Avian Malaria (Plasmodium relictum)

Published online by Cambridge University Press:  06 April 2009

P. Tate  and
M. Vincent
P. Tate
Affiliation:
From the Molteno Institute for Research in Parasitology, University of Cambridge
M. Vincent
Affiliation:
From the Molteno Institute for Research in Parasitology, University of Cambridge
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Extract

1. Anautogenous English and autogenous Greek, Hungarian, Maltese and cross-bred strains of C. pipiens were infected with an Algerian and a German strain of P. relictum.

2. The different strains of C. pipiens behaved similarly as regards susceptibility and transmission towards the same strain of P. relictum.

3. The two strains of malaria differ in the infection rate produced in mosquitoes. The Algerian strain produces an infection rate of about 89 per cent., while that of the German strain is only about 43 per cent.

4. The difference in the infection rates of the two strains is not due merely to differences in the number of gametocytes formed.

5. In general C. pipiens fed on birds infected with the Algerian strain of malaria became more heavily infected than those fed on birds infected with the German strain.

6. C. pipiens were infected in some cases by feeding on birds with chronic infections of the Algerian strain of P. relictum, but not when fed on birds with chronic infections of the German strain.

7. No seasonal influence was found as regards the infection of C. pipiens by P. relictum.

8. The Algerian strain of malaria was successfully transmitted by English, Greek, Hungarian, Maltese and Greek-Hungarian strains of C. pipiens, and the German strain of malaria by English, Greek, Maltese and Greek-English strains of C. pipiens.

Type
Research Article
Information
Parasitology , Volume 26 , Issue 4 , October 1934 , pp. 512 - 522
Copyright
Copyright © Cambridge University Press 1934

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References

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