Brazil's Health Minister Marcelo Castro (C) speaks to the media alongside Uruguay's Health Minister Jorge Basso (L) and Argentina's Health Minister Jorge Daniel Lemus during a joint news conference at the Mercosur building in Montevideo, February 3, 2016. Health ministers of the Mercosur trade block (Argentina, Brazil, Paraguay, Uruguay and Venezuela) and from Bolivia, Colombia, Chile, Costa Rica, Dominican Republic, Ecuador, Peru, Suriname and a delegation from Mexico held a meeting in Montevideo to discuss policies to deal with the Zika virus. REUTERS/Andres Stapff