This Feb. 2, 2016 photo shows eggs and larvae of the Aedes aegypti mosquito which are being hatched at the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick in Frederick, Md.
This Feb. 2, 2016 photo shows eggs and larvae of the Aedes aegypti mosquito which are being hatched at the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick in Frederick, Md. Sam Yu AP
This Feb. 2, 2016 photo shows eggs and larvae of the Aedes aegypti mosquito which are being hatched at the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick in Frederick, Md. Sam Yu AP