Zika link to birth defects could be proven within weeks: WHO

By Stephanie Nebehay and Ben Hirschler GENEVA/LONDON (Reuters) - The suspected link between the Zika virus and two neurological disorders, the birth defect microcephaly and Guillain-Barre syndrome, could be confirmed within weeks, the World Health Organisation (WHO) said on Friday. A sharp increase in microcephaly cases in Brazil has triggered a global health emergency over the mosquito-borne virus, which had previously been viewed as causing only a relatively mild illness, and spurred a race to