Scientists engineer mosquitoes that can't spread malaria

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Scientists have genetically modified mosquitoes with the ability to slow the growth of malaria-causing parasites in their gut, an advance that can help prevent transmission of the disease to humans.

These engineered mosquitoes produce compounds which impede the growth of malaria-causing parasites, which are then unlikely to reach the mosquitoes' salivary glands and be passed on in a bite before the insects die.