The Centers for Disease Control confirmed on Tuesday evening that a Chinese tourist has been found to be infected with the H7N9 strain of bird flu, marking the second imported case of H7N9 infection last year.
The 86-year-old man from Jiangsu Province is still in Taiwan receiving treatment, though most of his tour group has returned to China, the centers said.
Two of his daughters have stayed with him, but have thus far not shown symptoms associated with the virus.
The man entered the country on Dec. 17 and began showing symptoms two days later, starting with a loss of appetite. On Dec. 23, he reported chest pains before being taken to an emergency room the next day, where he was put on a ventilator to treat pneumonia.
The man’s symptoms were slightly different from previously reported infections, indicating that doctors are likely to face some difficulty in diagnosing the virus, an infectious diseases expert said.