What should you know about Zika in the US?

Zika transmission can occur through mosquito bites and can also occur through sex with a person who has been infected. Many people have no symptoms, while others develop a mild illness with fever, rash, red eyes, joint discomfort or headache. A recent trip, the dates of travel, mosquito bites and a partner's travel history all help a clinician assess possible exposure. Zika is especially relevant around pregnancy because infection during pregnancy can affect a developing baby.

Write down where you travelled, when symptoms began, medicines you have taken and whether pregnancy is possible or planned. Avoid further mosquito bites by using repellent, covering exposed skin and staying in screened or air-conditioned spaces where possible. Condoms or avoiding sex can reduce the chance of sexual transmission while you clarify your situation. A travel-health appointment can help you discuss destination-specific precautions before another trip.

Arrange medical advice promptly if you are pregnant or trying to conceive and may have been exposed to Zika. Seek urgent assessment for severe headache, confusion, weakness, trouble breathing, persistent vomiting, unusual bleeding or dehydration. These symptoms need assessment because illnesses after travel can have causes other than Zika. Mention any recent travel when you contact a clinic.

Ask whether your itinerary creates a meaningful exposure concern, whether testing is appropriate in your circumstances, and what precautions make sense for you and your partner. If you have symptoms, ask what other travel-related infections should be considered and which warning signs should prompt same-day care.