Friday is here, and the "A Taste of Science for the Weekend" column is back — number 102.
This time: what drives Google to use cutting-edge technology to release millions of mosquitoes into populated areas.
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The world's deadliest animals aren't bears or crocodiles — they're mosquitoes.
The serious diseases transmitted through the bites of female mosquitoes cause hundreds of thousands of deaths around the world every year, and humanity has yet to eradicate this threat.
Traditional attempts to eliminate mosquitoes have relied on chemical pesticides. This approach also harms populations of beneficial insects, and mosquitoes rapidly develop biological resistance through natural selection, forcing the constant development of new control methods.
Debug Project is a Google-owned company fighting this danger in an entirely different way — through biological pest control.
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*Wolbachia* bacteria are widespread among arthropods. They live inside the living cells of their host insect and can spread from insect to insect only through the female's eggs, passing to her offspring.
Because an infected male mosquito cannot pass the bacteria on, these bacteria have evolved a remarkable mechanism to ensure their continued reproduction:
A male mosquito infected with *Wolbachia* becomes sterile and cannot produce offspring — but if a female is also infected with *Wolbachia* and can continue spreading the bacteria, she produces a protein that neutralizes the sterility mechanism in the infected male, and together they go on to build a thriving, happy mosquito family.
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The company raises millions of mosquitoes in the laboratory, using advanced process-control technologies that enable optimal breeding conditions. The mosquitoes are infected with *Wolbachia*, and sophisticated systems sort out the males using advanced AI-powered cameras.
The infected males are released into the wild from vehicles equipped with precise, automated technological systems. When these mosquitoes mate with females in the same area, the females cannot produce viable offspring, and the local mosquito population collapses.
Trials conducted in Singapore, Indonesia, and China have demonstrated spectacular success, significantly reducing the spread of the dangerous dengue fever. The company is seeking approval for a large-scale trial in California, but US regulation and public concern over millions of mosquitoes and biological experiments make the mission challenging.
An additional concern stems from the fact that females infected with *Wolbachia* have a weakened immune system, making them at higher risk of contracting West Nile fever. The company claims its advanced AI systems can filter for males only, without error, thereby eliminating the risk.
Another international organization fighting mosquitoes focuses on a different approach, in which infected females are also released, since the bacteria reduce those mosquitoes' ability to transmit disease. Replacing the mosquito population with infected mosquitoes is a sustainable solution, in contrast to Google's approach, which requires the continuous release of new mosquitoes to prevent the local population from recovering.
It seems that for Google itself there is a distinct commercial advantage in the males-only release method, as it guarantees the commercial dependence of governments and municipalities on the solution it sells.
Shabbat Shalom 😊
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👋 Hi, I'm Shlomo Strauss, and my posts are not written by artificial intelligence.
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Video credit: Spark
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