Big Zika Virus Outbreak Unlikely In The U.S., Officials Say

A city worker fumigates to combat the Aedes Aegypti mosquitoes that transmit the Zika virus, at the San Judas Community in San Salvador, El Salvador, Tuesday, Jan. 26, 2016. Worries about the rapid spread of Zika through the hemisphere has prompted 

A city worker fumigates to combat the Aedes Aegypti mosquitoes that transmit the Zika virus, at the San Judas Community in San Salvador, El Salvador, Tuesday, Jan. 26, 2016. Worries about the rapid spread of Zika through the hemisphere has prompted 

A Berkeley woman is awaiting test results after believing she may have contracted Zika — a vector-borne disease strongly associated with birth defects — after a recent tropical vacation. The woman, who is pregnant, was tested for Zika after

A city worker fumigates to combat the Aedes Aegypti mosquitoes that transmit the Zika virus, at the San Judas Community in San Salvador, El Salvador, Tuesday, Jan. 26, 2016. Worries about the rapid spread of Zika through the hemisphere has prompted 

The Zika virus, which has been blamed for birth defects, is spread by a type of mosquito that is found in every country in the Western Hemisphere, except Canada where the weather is too cold. RENEE MONTAGNE, HOST: Now to the source of a different kind