If you’ve travelled to Zika-affected regions, don’t have unprotected sex for six months, the World Health Organization is advising in updated guidelines.

Scientists say a New York City woman infected her male partner with Zika virus through sex, marking the first time female-to-male transmission has been documented.

Scientists are quickly learning how Zika virus can spread from person-to-person, and in the latest findings, they’re warning that it could be transmitted through oral sex, not just intercourse.