Attempts to Transmit Bovine Anaplasmosis with Anopheles Quadrimaculatus Say (Diptera: Culicidae) and Dermacentor Andersoni Stiles (Acarina: Ixodidae)
- 25 August 1970
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Medical Entomology
- Vol. 7 (4) , 481-484
- https://doi.org/10.1093/jmedent/7.4.481
Abstract
Females of Anopheles quadrimaculatus were fed on donor calves acutely infected with Anaplasma marginale. In 1 trial, the mosquitoes were interrupted in their feeding and immediately transferred to a splenectomized recipient calf and completed engorgement; in other trials, mosquitoes were held for 3, 7, 8, or 14 days before receiving their second blood meals on splenectomized recipient calves. The mosquitoes did not transmit anaplasmosis to any of the 8 recipient calves. In contrast, adult Dermacentor andersoni, which engorged as nymphs on the same donor calves while the mosquitoes were feeding, later transmitted anaplasmosis to other splenectomized recipient calves in 5 of 7 trials. These results suggest that Anopheles quadrimaculatus plays little or no role in either the mechanical or biological transmission of Anaplasma marginale.Keywords
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