No fewer than 49 pregnant women have been tested positive since New York City started its Zika action plan in April, this is according to state officials.

NBCNewYork reports that one baby has been born with microcephaly due to the virus.

And more than 3,400 at-risk pregnant women have been tested under the program.

Mayor de Blasio said Tuesday that the city has committed $21 million to protect New Yorkers from Zika.

He and other politicians, including U.S. Rep. Carolyn Maloney, called on Congress to approve $1.9 billion in emergency funding.

Global health official are scrambling to fight Zika virus.

Zika virus is a member of the virus family Flaviviridae and the genus Flavivirus. It is spread by daytime-active Aedes mosquitoes, such as A. aegypti and A. albopictus.

Its name comes from the Zika Forest of Uganda, where the virus was first isolated in 1947.