by Damian WROCLAVSKY BRAZIL (AFP) — The head of the World Health Organization said Tuesday she is confident Brazil can host the Rio Olympics safely despite the Zika threat, though she warned of a long battle against the mosquito-borne virus. Margaret Chan, who was in Brazil for a 48-hour visit, praised the Brazilian government’s efforts to stamp out mosquitoes and its coordination with various international bodies, including the WHO and the International Olympic Movement, ahead […]