TAIPEI - Taiwan has its first imported case of Zika virus infection this year, involving a man who visited Angola, the island's disease control center said Thursday.

The Taiwanese male, in his twenties, visited Angola in mid-March and early April. He developed symptoms including fever, a rash and muscle aches in early April and sought medical treatment in Taiwan on April 10.

On April 13, he was confirmed to be infected with Zika virus. Currently, no one with whom he came into contact has developed symptoms, the center said.

Since 2016, a total of 14 imported Zika cases have been identified in Taiwan.

The disease center has issued a travel alert for Zika virus for 61 countries and regions with ongoing outbreaks or possible local transmission of Zika virus, including Singapore, Maldives and Angola.