App helps in Brazil's fight against Zika-spreading mosquito

Brazil has stepped up its fight against Aedes since researchers here linked an outbreak of Zika virus with a surge in cases of microcephaly, a rare birth defect that leaves babies with unusually small heads and brain damage that can cause mental retardation and a host of long-term problems.

The beach has become a regular stop for Niteroi's around half-dozen mosquito inspectors, who thanks to the app are now responding to ever-increasing numbers of complaints.

Since its launch earlier this year, the app has generated hundreds of complaints, Mayor Rodrigo Neves said.