Korea reported its fourth case of coronavirus infection on Monday. Health authorities said the 55-year-old Korean man returned home on Jan. 20 after visiting the Chinese city of Wuhan, the epicenter of the outbreak.

Only on Sunday another 54-year-old man was diagnosed with the Wuhan virus. He reportedly does business in the Chinese city including fashion and medical tourism.

Around 2,900 cases of coronavirus infection have been reported around the world so far, and at least 81 have died.

Unlike the first two cases -- a Chinese traveler and an Korean man from Wuhan who were quarantined on arrival at Incheon and Gimpo international airports -- the two men had moved around Seoul and surrounding areas for more than five days, raising fears that they spread the highly infectious virus.