Zika virus Information about Zika in Philadelphia, and how the City is working to prevent the emergence and spread of the disease. Overview Information on the history of the Zika virus, and its recent spread. Prevention Information on the best way to prevent yourself from getting bitten by mosquitoes that carry the Zika virus. Pregnancy risks Information on how pregnant women can become infected with Zika virus. Travel precautions Information on travel precautions one should take to prevent Zika transmission. Diagnosis & treatment Information on symptoms and treatment of the Zika virus. Mosquito control Information on what the City of Philadelphia does to control the mosquito population, and prevent Zika from spreading. What the City is doing Information on what the City is doing to prevent Zika and reduce mosquito problems. Common concerns Answers to some frequently answered questions about the Zika virus in Philadelphia.