10 February 2016: Reported increase of congenital microcephaly and other central nervous system symptoms - Epidemiological Update

Brazil 

In July 2015, Brazil reported the detection of patients with neurological syndromes who had recent history of Zika virus infection in the state of Bahia. There were 76 patients with neurological syndromes identified of which 42 (55%) were confirmed as Guillain-Barré Syndrome (GBS). Among the confirmed cases of GBS, 26 (62%) had a history of symptoms consistent with Zika virus infection. In addition, 7 patients presenting with neurologic syndromes were confirmed to be positive for Zika virus infection in November 2015. In 2015, a total of 1708 cases of GBS have been registered nationwide, representing a 19% increase from the previous year (1,439 cases).