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Attacking Zika: Mass release of 'altered' mosquitoes planned
Mosquitoes infected with the bug 'Wolbachia' could help reduce the spread of viruses such as Zika and chikungunya. Scientists are planning to release an army of millions of the modified mosquitoes in areas of Brazil and Colombia.
(Photo: Mosquitos photographed in a laboratory. Credit: Mario Tama/Getty Images)
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