The Fresno County Department of Public Health has announced the first travel-associated Zika virus case in Fresno County.

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An adult female resident of Fresno County is infected, according to health officials.

The Fresno County Department of Public Health is hosting an availability with the media today to discuss the case.

Zika virus is primarily transmitted by Aedes aegypti and Aedes albopictus mosquitoes. While not native to California, these mosquitoes have been detected in several California counties since 2011.

So far, Zika virus infections have been documented only in people who were infected while traveling outside the U.S. of through sexual contact with an infected traveler.

The Centers for Disease Control has issued Zika-related travel notices for areas including Cape Verde, Mexico and parts of the Caribbean, Central America, Pacific Islands and South America.