HARRISBURG, Pa. (WHTM) – The Centers for Disease Control and Prevention has confirmed two additional cases of Zika virus in Pennsylvania, according to the state Department of Health.
A total of four cases have been confirmed in the state since Feb. 9.
Zika is a generally mild illness that is spread primarily through the bite of an infected mosquito, but doctors believe the virus puts pregnant women at serious risks for birth defects.
The virus has been spreading through countries such as Brazil, Puerto Rico, the Virgin Islands, and American Samoa. Confirmed cases in the U.S. have occurred in people who traveled to areas affected by the outbreak.
Spread of the virus through blood transfusion and sexual contact has also been reported.
The Associated Press contributed to this report.