However, once malaria parasites infect a mosquito, they need at least 10 to 14 days – or two to six cycles of egg production – to mature and the insect salivary gland migrate. From there it can happen in humans when a mosquito bites. Therefore, as Read says. ‘Most mosquitoes malaria enough to transmit the disease to stop malaria, we need to kill all the old mosquitoes. ‘To mitigate the effects of the late-acting insecticides study on mosquito populations, the researchers , a mathematical model of malaria transmission by factors such as the egg-laying cycle of the mosquito and the development of the parasite in the insect. Analysis of the model using data on mosquito lifespan and malaria development show hotspots in Africa and Papua New Guinea that insecticides only kill mosquitoes that already at least four cycles of egg production reduce the number of infectious bites by about 95 %.
‘Done properly, could be a one-time investment, a single insecticide that would solve the problem of mosquito resistance forever. ‘ – ‘Insecticides are sprayed on house walls or bed nets some of the most successful ways to control malaria,’says Professor Read, professor of biology and entomology at Penn State, ‘but they work by killing the insects or denying them the human blood they use to make eggs This represents an enormous selection in favor of insecticide – resistant mosquitoes ”.
Aging mosquitoes are easier to could with insecticides such as DDT, but new generation also also kill do with reading and his colleagues. One biopesticide that kills older mosquitoes work. Since most mosquitoes die before they become dangerous, late-acting insecticides not have much impact on breeding, so there is much less pressure for the mosquitoes, to develop resistance to read, explained.It also seems to sexual frequency results in more experimentation. That study revealed that female the four or more sexual partner in their lifetime tend have a female sexual partners, comparing having is no male no male partners or women who were did only a male partner.
Add an older age group, which trial also wondering about her sexual about their sexual conduct, attraction and identities among the adults ages 25 to 44, about 98 percent of women and 97 percent of men vaginal intercourse;. 89 percent of women and 90 percent of men Oral with a member of the opposite sex and 36 percent of women and 44 percent of men have have enjoy anal sex with a other sex partner had.. It important to realize important to realize there is no separate group on sex people They is do not think only. here are the heterosexual people , here are the gay people. human pull their partners across all different sites. They are not necessarily clear boundaries between communities in this in this behavior and that behavior.