Zika is a virus spread by the same mosquito as dengue. This mosquito bites in the daytime.
Is Zika dangerous?
Most people with Zika feel only a little sick, or not sick at all. Some get a mild fever, a rash, red eyes or sore joints.
The big danger is in pregnancy. If a pregnant woman gets Zika, her baby can be born with a very small head and brain problems.
How does Zika spread?
- mainly by mosquito bites
- from a mother to her unborn baby
- through sex
Where is Zika now?
There are fewer cases than in 2016. But Zika still appears in parts of the Americas, Africa and Asia.
How to protect yourself
- Stop mosquitoes biting, especially in the daytime and early evening.
- Wear long sleeves and use insect repellent.
- Empty water containers every week.
- If you are pregnant, take extra care, and talk to your health worker before you travel to a place with Zika.
Watch: Episode 17, Other Mosquito-Borne Illnesses → See the free series
Sources: WHO Zika virus fact sheet (November 2025)
This article gives general information only. Always follow a health worker’s advice.
