Seasonality of adult black flies and Onchocerca volvulus transmission in Guatemala.

@article{Porter1988SeasonalityOA,
  title={Seasonality of adult black flies and Onchocerca volvulus transmission in Guatemala.},
  author={Charles H. Porter and Richard C Collins},
  journal={The American journal of tropical medicine and hygiene},
  year={1988},
  volume={38 1},
  pages={
          153-67
        }
}
Transmission of Onchocerca volvulus, principally by Simulium ochraceum, was studied over a 14-month period in the Atitlán region of Guatemala. Semimonthly catches of black flies were made on human volunteers at 4 localities with different prevalences of human onchocerciasis. Host-seeking activity of S. ochraceum reached its greatest magnitude in the early dry season (October-January) but then declined rapidly and was lowest during the late dry season (February-May). The frequency of O. volvulus… CONTINUE READING
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