Mosquito-borne viruses threaten public health worldwide. When the ratio of competent vectors to susceptible humans is low enough, the virus’s basic reproductive number (R0) falls below 1.0 (each case generating, on average, <1.0 additional case) and the infection fades out from the population. Conventional mosquito control tactics, however, seldom yield R0 < 1.0.

In a first, researchers have genetically engineered mosquitoes that have an increased resistance to infection by the dengue virus.

AHMEDABAD: Vector-borne infections continue to rise in the city, with 75 fresh cases reported till Saturday.

Countries in the Asia Pacific region aim to eliminate malaria by 2030. A cornerstone of malaria elimination is the effective management of Anopheles mosquito vectors. Current control tools such as insecticide treated nets or indoor residual sprays target mosquitoes in human dwellings. We find in a high transmission region in India, malaria vector populations show a high propensity to feed on livestock (cattle) and rest in outdoor structures such as cattle shelters. We also find evidence for a shift in vector species complex towards increased zoophilic behavior in recent years.

We have developed genetically modified Ae. aegypti mosquitoes that activate the conserved antiviral JAK/STAT pathway in the fat body tissue, by overexpressing either the receptor Dome or the Janus kinase Hop by the blood feeding-induced vitellogenin (Vg) promoter. Transgene expression inhibits infection with several dengue virus (DENV) serotypes in the midgut as well as systemically and in the salivary glands. The impact of the transgenes Dome and Hop on mosquito longevity was minimal, but it resulted in a compromised fecundity when compared to wild-type mosquitoes.

Pulmonary and heart diseases claimed 46,811 lives in Karnataka in 2014, the latest year for which statistics on various causes of deaths in the country have been compiled by the Medical Certificati

Children rehearse for the Kite Festival on the riverfront on ThursdayChildren rehearse for the Kite Festival on the riverfront on Thursday

Even after three months of efforts, mosquitoes are everywhere in the state and biting the people as usual.

The World Health Organization (WHO) stated in March 2016 that there was scientific consensus that the mosquito-borne Zika virus was a cause of the neurological disorder Guillain–Barré syndrome (GBS) and of microcephaly and other congenital brain abnormalities based on rapid evidence assessments. Decisions about causality require systematic assessment to guide public health actions.

Nashik: Chikungunya virus has struck Suryagadh village under Mani primary health centre of Surgana taluka and nine persons have tested positive till now.

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