To control dengue fever, one biotech has developed genetically modified mosquitoes whose offspring die before they can spread the disease.
These mosquitoes have already been released in Brazil, Malaysia, and the Cayman Islands. In Key West, Florida, the disease reappeared 3 years ago, after an absence of over 70 years.
- Their mosquitoes (known as OX513A) are an engineered version of Aedes aegypti, the main transmitter of dengue fever, which infects at least 50 million people a year.
- The modified males carry a lethal gene kept in check only by a special diet.
- They survive to mate with wild females, but the offspring die.
- In field tests conducted in Juazeiro, Brazil, the engineered insects shrank the A. aegypti population in…
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