Brazil says expects to develop Zika vaccine in a year

Brazil expects to develop a vaccine for the Zika virus in about a year, Health Minister Marcelo Castro and Pedro Vasconcelos, a doctor at the Evandro Chagas Institute of Infectious diseases, told a press conference on Thursday. Castro said the vaccine could be developed in a year or so, more quickly than originally expected, though that did not mean it would be ready at that time for widespread application.