Abstract
The article presents data on the study of female mosquitoes for the DNA of dirofilariae, and assesses the likelihood of microfilariae development in the vector organism from the first instar (L1) to the invasive stage (L3) in the climatic conditions of the North-Western part of the Moscow region. Mosquitoes were studied based on the data on localization of larvae of different instars in the vector organism. A total of 4000 female mosquitoes belonging to 15 species of the genera Culex, Anopheles and Aedes (Ochlerotatus) were studied for three years. It was found that of the microfilariae obtained by a mosquito during contact with a warm-blooded host, about a 25% survive to the invasive stage, which by the end of summer constitutes approximately 2 % of “dangerous” female mosquitoes from the total natural population. When bitten by an infected mosquito, the probability of D. immitis infestation in the Moscow region was about 37,6 %, D. repens – 62,3 % of the total number of female mosquitoes capable of transmitting L3 microfilariae.
Published Version
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