A scientist examines mosquitoes at the lab. Walter Reed Army Institute of Research hide caption

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Volunteers Who Say 'Bite Me' Are Helping To Win The War Vs. Mosquitoes
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Mosquito larvae fill the cup of stale water that entomologist Luis Hernandez dips from a stack of old tires in a suburb of San Juan, Puerto Rico. Greg Allen/NPR hide caption

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Puerto Rico Races To Stop Zika's Mosquitoes Before Rains Begin
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This Mosquito Likes Us Too Much For Our Own Good
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A city health worker and a Brazilian soldier point out potential breeding grounds for mosquitoes in the city of Recife. Mario Tama/Getty Images hide caption

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Brazilians Have To Learn To Think Like A Mosquito
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Sporadic dengue fever outbreaks in Florida in 2009 and 2010 spurred mosquito control efforts in Key West and Miami Beach, shown here. The same mosquito that carries dengue, Aedes aegypti, can transmit Zika. Joe Raedle/Getty Images hide caption

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Florida Governor Ramps Up Mosquito Fight To Stay Ahead Of Zika
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A patient suffering from Guillain-Barre syndrome recovers in a hospital ward in San Salvador on Jan. 27. Researchers are trying to determine whether there is a link between the disorder, which can cause weakness and paralysis, and the mosquito-borne Zika virus. Marvin Recinos /AFP/Getty Images hide caption

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CDC Sees Major Challenges Ahead In The Fight Against Zika
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Dr. Margaret Chan is director-general of the World Health Organization. In her first major address on Zika, delivered Thursday in Geneva, she said: "Questions abound. We need to get some answers quickly." Sandro Campardo//epa/Corbis hide caption

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Larvae of genetically modified Aedes aegypti mosquitoes are pictured through a microscope viewfinder. The larvae will die before reaching adulthood. Nelson Almeida /AFP/Getty Images hide caption

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