The largest mosquito factory in the world is located in Guangzhou. Its full name is "Joint Research Center for Tropical Pest Control", which was jointly founded by Guangzhou Sun Yat-sen University and Michigan State University. When the mosquito factory was first established, the residents nearby were frightened. I was bitten all over by mosquitoes in summer, and I hate mosquitoes. In their view, the mosquito factory is completely to make trouble. No matter what you study, mosquitoes fly out and local people suffer.
In fact, this concern of local residents is completely unnecessary. Scientists study mosquitoes only to prevent the spread of dengue fever, yellow fever and Zika virus.
As we all know, mosquitoes are the disseminators of many diseases. As long as mosquitoes are not eliminated, infected people will continue to appear. Therefore, scientists do the opposite, using the method of "fighting poison with poison" and using micro-embryo injection technology to extract Wolbachia from Drosophila and then inject it into mosquito eggs.
Researchers say Wolbachia is harmless to human body, but it can make mosquitoes sterile. The specific process is: firstly, feed sheep blood to female mosquitoes, so that female mosquitoes can thrive. When it matures, it will lay eggs. The researchers then injected Wolbachia into eggs. After the eggs hatch, the female mosquitoes are finally removed, leaving the male mosquitoes. The reason why male mosquitoes are left behind is because they don't suck blood and won't cause trouble to people.