Transgenic mosquitoes transfer genes to native mosquito species

Transfer of genes from genetically-modified Aedes aegypti mosquitoes to naturally-occurring ones were seen in Brazil where transgenic mosquitoes were released from June 2013 to September 2015. Contrary to claims made, genes from genetically-modified Aedes aegypti mosquito were found to have been transferred to naturally-occurring A. aegypti mosquito population in three areas in Brazil where transgenic mosquitoes … Continue reading Transgenic mosquitoes transfer genes to native mosquito species

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Wolbachia-infected mosquitoes less capable of spreading Zika, chikunguya

With conventional vector controlling measures against dengue- and Zika-causing Aedes aegypti mosquitoes failing, several countries have started caged and even open field trials using genetically modified mosquitoes. India has signed a Memorandum of Understanding with Monash University for using Wolbachia-infected A. aegypti mosquitoes for vector control. Dengue, Zika or chikunguya viruses cannot replicate when mosquitoes have been infected … Continue reading Wolbachia-infected mosquitoes less capable of spreading Zika, chikunguya

India begins caged trials of GM mosquitoes to control dengue, chikungunya

Outdoor caged trials to demonstrate the efficiency of genetically modified mosquitoes to suppress wild female Aedes aegypti mosquito populations that causes dengue, chinkungunya and Zika were launched on January 23 in Dawalwadi, Badnapur in  Maharashtra's Jalna district. Based on the results of the caged trials, which use the Release of Insects carrying Dominant Lethal genes … Continue reading India begins caged trials of GM mosquitoes to control dengue, chikungunya

A ‘turning point’ in the Zika outbreak

More than 50 years after the infectious pathogen, rubella virus, was identified as the cause of an epidemic of congenital defects, the Centres for Disease Control and Prevention (CDC) in the United States confirmed on April 13 that Zika virus infection during pregnancy causes microcephaly and other severe foetal brain defects. The confirmation of causal … Continue reading A ‘turning point’ in the Zika outbreak

The curious case of larvicides causing microcephaly

In the beginning, a rather ludicrous rumour made the rounds — genetically modified mosquitoes released in Brazil, by a British biotech company Oxitec to control Aedes aegypti mosquitoes that cause dengue, was responsible for the Zika virus disease outbreak. The conspiracy theory was started by one Redditor who proposed the link. The genetically modified mosquitoes are unlikely … Continue reading The curious case of larvicides causing microcephaly

Novel approaches to fight Aedes aegypti mosquito

An estimated 390 million dengue infections occurring each year across 150-odd countries is proof that the current mosquito control measures are grossly inadequate to keep the Aedes species, the vector that transmits dengue, chikungunya and Zika, under check. In Brazil, more than 1.5 million people were affected by Zika last year. That the virus has … Continue reading Novel approaches to fight Aedes aegypti mosquito

GM mosquitoes check dengue in Brazil

The use of genetically engineered mosquitoes to control dengue and chikungunya-causing Aedes aegypti mosquito population in the wild got a shot in the arm in a study undertaken in Juazeiro, northeast Brazil. Researchers successfully reduced the A. aegypti population in the wild by as much as 95 per cent, thus effectively preventing dengue and chikungunya … Continue reading GM mosquitoes check dengue in Brazil