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The Aedes Aegypti mosquito larvae are photographed at a laboratory of the Ministry of Health of El Salvador in San Salvador, February 7, 2016. Health authorities continue their efforts to eliminate the mosquito-borne Zika virus, currently of which there is no no cure or vaccine. / AFP / MARVIN RECINOS (Photo credit should read MARVIN RECINOS/AFP/Getty Images)

The Aedes Aegypti mosquito larvae are photographed at a laboratory of the Ministry of Health of El Salvador in San Salvador, February 7, 2016. 
Health authorities continue their efforts to eliminate the mosquito-borne Zika virus, currently of which there is no no cure or vaccine.  / AFP / MARVIN RECINOS        (Photo credit should read MARVIN RECINOS/AFP/Getty Images)