The health authorities said seven other people who traveled to the Southeast Asian country with the Zika-infected woman are also under epidemiological survey.

Fourteen South Koreans infected with the virus were infected while traveling to Southeast Asian countries, including the Philippines and Vietnam, while four others made a trip to Central and South American nations, including Brazil, the KCDC said.

The KCDC advises pregnant women and their partners who are worried about potential exposure to consider avoiding travel to such areas. Those who have traveled to affected regions in the past two months are advised to avoid any sexual contact or wear condoms if their partner is pregnant.

The virus, first discovered in Africa, is not life-threatening but may be linked to thousands of birth defects in newborn babies like abnormally small heads and improperly developed brains. (Yonhap)