Rio de Janeiro, Brazil yesterday released nearly 10,000 Wolbachia bacteria infected mosquitoes, used to suppress the spread of dengue fever. The experiment started in 2012, with the exception of Brazil, carried out in Australia, Vietnam and Indonesia.
Brazil to release nearly 10,000 infected mosquitoes Wolbachia bacteria to fight dengue virus (screenshots)
According to the British Broadcasting Corporation (BBC) 9 月 24 reported that Rio de Janeiro yesterday released nearly 10,000 infected mosquitoes Wolbachia bacteria, used to suppress the spread of dengue fever. The experiment started in 2012, with the exception of Brazil, carried out in Australia, Vietnam and Indonesia.
The experiment sponsored by the Brazilian National Laboratory Fiocruz, working to eliminate hazards to human dengue infections. With the large number of Wolbachia bacteria infected mosquitoes are released, they multiply rapidly, becoming the number of mosquitoes in the body, thereby reducing the spread of mosquito-borne caused by dengue virus. The Wolbachia bacteria infected a million pieces in batches of mosquitoes will be released within four months, the first release of the selected location in Tubiacanga northern Rio de Janeiro.
Wolbachia bacteria in 60% of the insects found, can block the propagation of dengue virus in mosquitoes, and is not contagious to humans. In addition, Wolbachia bacteria have a strong reproductive. When infected with Wolbachia bacteria male mosquitoes insemination, no female mosquitoes bacteria in the body of the child does not form a larva ovulation. When male and female mosquitoes carrying Wolbachia bacteria or fungus infection as long as the female mosquitoes, their offspring will carry a Wolbachia bacteria.
The project will continue to follow up and expand the scope of the study and evaluate the results in 2016. Since 1981, dengue virus attack again after 20 years in Brazil, after 30 years, in Brazil reported 7,000,000 cases. Brazil has become a worldwide epidemic of dengue fever high, in 2009-2014, a total of 3.2 million cases, 800 people were killed.