A preliminary study on in vitro transmission of Dirofilaria immitis infective stage larvae by Aedes aegypti (L.) (Diptera: Culicidae).
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2005-11-28
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Abstract
This study was performed to study an in vitro transmission of infective stage larvae from the mosquito proboscis. There were five experiments with 949 mosquitoes. Liverpool strain of Aedes aegypti (L.) were used in this study. They were allowed to feed on D. immitis infected dogs with different microfilarial levels which were 1,650, 1,950, 9,000, 9,250, and 11,550 microfilariae per one ml of blood. Mosquitoes were forced to feed on solution (5% sucrose in 5% dog serum) in capillary tubes for 20 minutes at 7-34 days post-blood feeding. Solutions in capillary tubes then were examined and mosquitoes were dissected and examined for D. immitis larvae under a light microscope. Second stage larvae could be found in the abdomen and malpighian tubules of mosquitoes and third stage larvae can be found in the abdomen, malpighian tubules, thorax, and proboscis of mosquitoes with different levels of infection. No larvae were detected in the solution in capillary tubes of all experiments.
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The Southeast Asian Journal of Tropical Medicine and Public Health.
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Tiawsirisup S, Khlaikhayai T, Nithiuthai S. A preliminary study on in vitro transmission of Dirofilaria immitis infective stage larvae by Aedes aegypti (L.) (Diptera: Culicidae). The Southeast Asian Journal of Tropical Medicine and Public Health. 2005 ; 36 Suppl 4(): 86-9