Since 2015 there have been Zika outbreaks reported in sixty countries. So, where did Zika come from? What happens when you get infected? How worried should you be?And why has Zika has become such a problem recently? To find out, we speak to Assoc. Prof. Desiree LaBeaud, Dr Cathy Spong, Dr Andrew Haddow, and New York Times health reporter Donald McNeil Jr. Credits This episode has been produced by Diane Wu, Wendy Zukerman, Heather Rogers, Caitlin Kenney, and Shruti Ravindran. Our senior producer is Kaitlyn Sawrey. Edited by Annie-Rose Strasser. Sound design and music production by Matthew Boll, mixed by Martin Peralta. Music written by Martin Peralta and Bobby Lord. Our Sponsors Prudential – Download the MapMyRun app and join the Prudential 4.01K challenge. When you do, pledge to save at least 1% or more of your annual income for retirement and run and log 4.01K to be eligible to win a prize. Squarespace – The easiest way to create a beautiful website, portfolio or online store. Use the offer code “SCIENCE VS” to get 10% off your first purchase. Wealthsimple – Investing made easy. Get your first $10,000 managed for free. Selected ReferencesFirst case of Zika reported in Nigerian girl N. McNamara, Trans R Soc Trop Med Hyg, 1954.Donald McNeil Jr’s recent book on Zika epidemic McNeil, DG “Zika: The emerging epidemic,” W. W. Norton and Co, 2016Interactive history of Zika from the World Health OrganizationZika virus may linger in the vagina Prisant, N et al “Zika virus in the female genital tract,” The Lancet 2016Estimated risk of microcephaly if you get zika when pregnant is between one and 13% Johansson, M et al “Zika and the Risk of Microcephaly,” New England Journal of Medicine, 2016First report that Zika can be spread through sex (confirming Andrew Haddow's hunch over a beer in Senegal) Foy, BD et al “Probable Non–Vector-borne Transmission of Zika Virus, Colorado, USA,” Emerging Infectious Diseases, 2011U.S. Centers for Disease Control recommendations on ZikaWorld Health Organization recommendations on Zika Learn more about your ad choices. Visit podcastchoices.com/adchoices