THE BRONX - The city's Health Department hosted a town hall meeting Wednesday at the Bronx Community College to address the Zika virus, which has hit the Bronx hardest out of the five boroughs.

Officials say 80 percent of infected people have no symptoms at all.

The virus has been linked to microcephaly, a brain disorder affecting newborns that also causes their heads to appear shrunken.

The first case of microcephaly in New York was reported just days ago, and as of July 15, city officials say the Bronx has had the most cases of Zika virus with 139.

The virus spreads through blood contact -- which can occur through mosquito bites. It can also be spread through sexual intercourse.

Officials are warning people who are pregnant or trying to get pregnant not to travel to Zika-affected areas like Central and South America, Mexico and the Caribbean.

The city also says it will deploy pesticides throughout the summer to reduce the number of local mosquitos.