DHAKA: Bangladesh confirmed on Tuesday its first case of the Zika virus in an old sample of blood from a 67-year old man who had not been overseas, Health Ministry officials said.

The man lives in southeastern port city of Chittagong and was well, Junior Health Minister Zahid Maleque told a news conference. None of his relatives had tested positive, he said.

Mahmudur Rahman, director of the ministry’s Institute of Epidemiology, Disease Control and Research, said the man had never traveled outside Bangladesh.

“The virus was found in the man as we tested old blood samples of nearly 1,000 people afflicted with fever in 2014 and 2015,” Rahman told Reuters.

Also on Tuesday, South Korea reported the country’s first case of the Zika virus.

A 43-year-old man who recently returned from Brazil was diagnosed with the virus after suffering fever, muscle pain and rash, according to a statement from the state-run Centers for Disease Control & Prevention.

The virus has so far triggered outbreaks in more than 40 countries.

Meanwhile on Tuesday, top health officials, including Tarun Dua, head the WHO Department of Maternal, Newborn, Child and Adolescent Health; Anthony Costello WHO chief Margaret Chan; and head of WHO vectors, environment and society department Florence Fouque attended a press conference on the Zika outbreak at the health organization headquarters in Geneva.