Female mosquitoes that transmit dengue and Zika virus are people from receptor to which lactic acid in sweat of the human senses, discovered American researchers, AFP reported Friday.
Matthew DeGennaro, neurogenetician University of Miami, Florida, and his colleagues have identified a gene called IR8a, without mosquitoes lose much of their ability to smell. Mosquitoes mutants that lack this gene were twice less attracted to people than wild mosquitoes, according to experiments conducted on 14 people. Scientists published Thursday in the journal Current Biology Aedes aegypti mosquitoes studies done on this transfer Zika, dengue and yellow fever.
For decades, we know that mosquitoes are attracted to sweat and lactic acid (in the annex to the heat and carbon dioxide exhaled by people), but researchers do not yet know the precise molecular and genetic mechanism. "We studied the lactic acid receptor in the 1960s," said Professor DeGennaro. Theoretically, we could now try to block the way from the mosquito olfactory equivalent of the chemical or spirits, to become almost invisible to insects spiders (placements of the major organs of smell), he said. Nevertheless, the production of this substance remains an issue. "It will take years, but we really made a step forward," said Matthew DeGennaro.