A recent larger outbreak of Zika virus outside Africa and Asia was confirmed in April 2015, in Brazil. In the district of Camaçari and the neighbor Salvador city, capital of the state of Bahia, healthcare authorities confirmed that a previously unknown disease affecting around 500 patients with flu-like symptoms followed by rash and arthralgia is indeed an ongoing outbreak of Zika fever, as proved by RT-PCR technique by researchers from Federal University of Bahia. Local authorities link the outbreak to recent increased flow of foreign visitors prompted by the 2014 FIFA World Cup, coupled with the large population of insect vectors such as Aedes aegypt and Aedes albopictus mosquitoes that inhabit the region. The spread follow a similar pattern to the also recent outbreak of chikungunya virus in the same region.