What we know
- No vaccine exists to prevent Zika.
- Prevent Zika by avoiding mosquito bites.
- Mosquitoes that spread Zika virus bite mostly during the daytime.
- Mosquitoes that spread Zika virus also spread dengue and chikungunya viruses.
- A man with Zika virus can pass it to his sex partners during vaginal, anal or oral (mouth-to-penis) sex without a condom.
What you can do to protect yourself and others
- Page last reviewed: June 1, 2015
- Page last updated: June 21, 2016
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