As of January 23, 2016, Brazil’s health ministry has reported more than 4,000 cases of microcephaly, a neurological condition in infants that results in smaller head size. The largest number of cases have been reported in Pernambuco, Paraíba and Bahia, northeastern states. There is a suspected link to the outbreak of Zika virus, transmitted by mosquitoes, but it has yet to be proven. Using Brazil Health Ministry data, we mapped the distribution of microcephaly cases in the country. Hover over the state to reveal the total number of microcephaly cases reported versus those confirmed and those currently under investigation.
And here’s the prevalence of microcephaly cases per 100,000 inhabitants.