'Domestication' increases mosquito's zika virus susceptibility

November 19, 2020

The Aedes aegypti aegypti subspecies of mosquito, which has become a "domestic" pest worldwide, can acquire and transmit Zika virus more easily than its African forerunner. This finding by Fabien Aubry and colleagues could help explain why the virus hasn't caused large-scale outbreaks yet on the African continent. Zika virus disease is associated with an increased risk of microencephaly and other congenital malformations and neurological diseases such as Guillain-Barré syndrome. The virus is transmitted by Ae. aegypti aegypti, which thrives in intertropical urban environments, laying its eggs in water storage containers and trash and preferentially biting humans. But it's not just this closer proximity to humans that makes the mosquito such a potent vector for Zika, Aubry et al. write. After testing 14 lab mosquito colonies developed from field samples collected in Asia, Africa, and the Americas, the researchers found that the African mosquitoes were less likely to acquire Zika virus in their blood meals, and therefore had lower amounts of the virus to transmit when they fed on mice. Genetic differences located on the mosquito chromosome 2 are likely the cause of the increased susceptibility to Zika virus found in Aedes aegypti aegypti outside of Africa, they concluded.

American Association for the Advancement of Science

Related Virus Articles from Brightsurf:

Researchers develop virus live stream to study virus infection
Researchers from the Hubrecht Institute and Utrecht University developed an advanced technique that makes it possible to monitor a virus infection live.

Will the COVID-19 virus become endemic?
A new article in the journal Science by Columbia Mailman School researchers Jeffrey Shaman and Marta Galanti explores the potential for the COVID-19 virus to become endemic, a regular feature producing recurring outbreaks in humans.

Smart virus
HSE University researchers have found microRNA molecules that are potentially capable of repressing the replication of human coronaviruses, including SARS-CoV-2.

COVID-19 - The virus and the vasculature
In severe cases of COVID-19, the infection can lead to obstruction of the blood vessels in the lung, heart and kidneys.

Lab-made virus mimics COVID-19 virus
Researchers at Washington University School of Medicine in St. Louis have created a virus in the lab that infects cells and interacts with antibodies just like the COVID-19 virus, but lacks the ability to cause severe disease.

Virus prevalence associated with habitat
Levels of virus infection in lobsters seem to be related to habitat and other species, new studies of Caribbean marine protected areas have shown.

Herpes virus decoded
The genome of the herpes simplex virus 1 was decoded using new methods.

A new biosensor for the COVID-19 virus
A team of researchers from Empa, ETH Zurich and Zurich University Hospital has succeeded in developing a novel sensor for detecting the new coronavirus.

How at risk are you of getting a virus on an airplane?
New 'CALM' model on passenger movement developed using Frontera supercomputer.

Virus multiplication in 3D
Vaccinia viruses serve as a vaccine against human smallpox and as the basis of new cancer therapies.

Read More: Virus News and Virus Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.