The Missouri Department of Health and Senior Services(DHSS) confirmed a case of the Zika virus in a Missouri woman this week, bringing the total number of travel-related cases to 30.

The woman contracted the virus while traveling to Puerto Rico, a press release from the department said.

The virus can yield mild symptoms including fever, rash, joint soreness and redness of eyes, but nearly 80 percent of people with the virus do not show symptoms, the DHSS said.

The CDC recommended pregnant women avoid traveling to Zika-affected areas which include areas of Florida and countries ranging from Mexico into the Caribbean, Central American and South America.