Zika virus – linked to severe birth defects in thousands of babies in Brazil – is spreading “explosively”, the World Health Organization (WHO) said on Thursday (January 28). Director-general Margaret Chan told members of WHO’s executive board in Geneva that the spread of the mosquito-borne disease had gone from a mild threat to one of alarming proportions. “Last year, the virus was detected in the Americas, where it is now spreading explosively. As of today, […]