Genetically-engineered mosquitoes give hope against dengue

In a first, researchers have genetically engineered mosquitoes that have an increased resistance to infection by the dengue virus. After decades of research and countless control attempts, dengue continues to infect an estimated 390 million people around the world each year. Now, researchers report that mosquitoes carrying dengue virus (DENV) can be genetically engineered, giving an increased resistance to infection by the virus. When a mosquito bites someone infected with DENV, the virus needs to complete its lifecycle in the mosquito’s gut, eventually infecting its salivary glands, before it can…

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