The zika virus is sweeping across South America, but it is an Asian mutation, different from the strains endemic in African countries. Does it mean African populations could be reinfected?
Africans are being blamed by doctors for bringing the mosquito-borne zika virus to South America, where an increase has been recorded in babies being born with an underdeveloped brain. Is that plausible?
Is a vaccine against whooping cough the “most likely triggering cause” of microcephaly in Brazilian babies? US fact-checking site Politifact couldn’t find a shred of evidence to support this claim.