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Scientists+create+malaria-blocking+mosquitoes
Tuesday, 24 November 2015 - 10:45
Scientists create malaria-blocking mosquitoes
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Using a groundbreaking gene editing technique, University of California scientists have created a strain of mosquitoes capable of rapidly introducing malaria-blocking genes into a mosquito population through its progeny, ultimately eliminating the insects’ ability to transmit the disease to humans.

This new model represents a notable advance in the effort to establish an antimalarial mosquito population, which with further development could help eradicate a disease that sickens millions worldwide each year.

To create this breed, researchers at the Irvine and San Diego campuses inserted a DNA element into the germ line of Anopheles stephensi mosquitoes that resulted in the gene preventing malaria transmission being passed on to an astonishing 99.5 percent of offspring. A. stephensi is a leading malaria vector in Asia.

Malaria is one of the world’s leading health problems. More than 40 percent of the world’s population live in areas where there is a risk of contracting the disease. According to the Centers for Disease Control and Prevention, 300 million to 500 million cases of malaria occur each year, and nearly 1 million people die of the disease annually – largely infants, young children and pregnant women, most of them in Africa.

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