Per the Centers for Disease Control and Prevention (CDC), Zika virus disease is caused by the Zika virus, which is spread to people primarily through the bite of an infected mosquito (Aedes aegypti and Aedes albopictus). The illness is usually mild with symptoms lasting up to a week, and many people do not have symptoms or will have only mild symptoms. However, Zika virus infection during pregnancy can cause a serious birth defect called microcephaly and other severe brain defects.
Note: The mosquitoes that can become infected with and spread Zika virus live in many parts of the world, including parts of the United States. The species of mosquitoes that can transmit Zika virus are not found in Wisconsin.
Protect yourself and your family from mosquito bites all day and night, whether you are inside or outside. A mosquito becomes infected when it bites a person already infected with Zika. That mosquito can then spread the virus by biting more people. Zika virus can also spread:
Many people infected with Zika won’t have symptoms or will only have mild symptoms. The most common symptoms are:
Other symptoms include:
Symptoms can last for several days to a week. People usually don’t get sick enough to go to the hospital, and they very rarely die of Zika. Once a person has been infected with Zika, they are likely to be protected from future infections.
Zika infection during pregnancy can cause fetuses to have a birth defect of the brain called microcephaly. Other problems have been detected among fetuses and infants infected with Zika virus before birth, such as defects of the eye, hearing deficits, and impaired growth. There have also been increased reports of Guillain-Barré syndrome, an uncommon sickness of the nervous system, in areas affected by Zika.
Zika outbreaks are currently happening in many countries and territories. The mosquitoes that can become infected with and spread Zika live in many parts of the world, including parts of the United States. The species of mosquitoes that can transmit Zika virus are not found in Wisconsin.
In response to ongoing outbreaks in both North and South America, the U.S. Centers for Disease Control and Prevention (CDC) has issued travel notices for people traveling to areas where Zika is being spread. Pregnant women should postpone travel to areas affected by Zika.
Specific areas where Zika virus is spreading are often difficult to determine and are likely to change over time. If traveling, please visit the CDC Travelers’ Health website (cdc.gov/travel/page/zika-travel-information) for the most recent travel information.
There is no vaccine to prevent Zika. The best way to prevent diseases spread by mosquitoes is to protect yourself and your family from mosquito bites. Here’s how:
There is no specific medicine to treat Zika. Treat the symptoms:
To help prevent others from getting sick, strictly follow steps to prevent mosquito bites during the first week of illness.