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Ultimate sex fever

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Males aren't relevant -- at least when it comes to disease transmission by mosquitoes. Researchers with the Fralin Life Science Institute at Virginia Tech have identified a gene responsible for sex determination in mosquitoes that can transmit yellow fever, dengue, and chikungunya viruses. Only female mosquitoes bite because they need blood for developing eggs, and researchers believe that a higher ratio of males could reduce disease transmission. In a study published in the Science Express , the scientists identify a male-determining genetic switch called Nix in Aedes aegypti mosquitoes that underlies the difference between males and females. These master switches often reside in genomic black holes, which is why none had been found in mosquitoes or other insects before.
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‘Mosquito sex is key to controlling dengue fever’

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‘Mosquito sex is key to controlling dengue fever’ | Lifestyle News,The Indian Express

Sterile male releases have successfully reduced local populations of the dengue vector, Aedes aegypti , but challenges remain in scale and in separating sexes prior to release. The recent discovery of the first mosquito male determining factor M factor , will facilitate our understanding of the genetic programs that initiate sexual development in mosquitoes. Manipulation of the M-factor and possible intermediary factors may result in female-to-male conversion or female killing, enabling efficient sex-separation and effective reduction of target mosquito populations. Given recent breakthroughs in the development of CRISPR-Cas9 reagents as a source of gene drive, more advanced technologies at driving maleness, the ultimate disease refractory phenotype, become possible and may represent efficient and self-limiting methods to control mosquito populations. Anopheles mosquitoes are the primary vectors of malaria, one of the most deadly and costly diseases in human history. Aedes aegypti is a major vector for dengue, yellow fever, and chikungunya viruses.
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Control of mosquito-borne infectious diseases: Sex and gene drive

Researchers with the Fralin Life Science Institute at Virginia Tech have identified a gene responsible for sex determination in mosquitoes that transmit yellow fever, dengue, and chikungunya viruses. Only female mosquitoes bite because they need blood for developing eggs, and researchers believe that a higher ratio of males could reduce disease transmission. In a study published Thursday in Science Express , the scientists identify a male-determining genetic switch called Nix in Aedes aegypti mosquitoes that underlies the difference between males and females. These master switches often reside in genomic black holes, which is why none had been found in mosquitoes or other insects before. The scientists injected Nix into mosquito embryos and found more than two-thirds of the female mosquitoes developed male genitals and testes.
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When it comes to sex concerns, most guys worry about finishing too fast. Your body is throbbing with desire, but your head is just plain throbbing. About one in people suffer from headaches during or after sex, according to the American Headache Society.
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