Officials in Taiwan say authorities are monitoring hundreds of people who may have had contact with a mainland Chinese tourist infected with the H7N9 strain of bird flu.
The 86-year-old man from the eastern Chinese province of Jiangsu is in stable condition in hospital in Taiwan, where he was on an eight-day tour, the ABC reports.
As many as 500 people may have had contact with him, all of whom are being asked to report to doctors should they develop possible symptoms.
The 149 people who may have had close contact include two family members accompanying him on the tour, the tour guide, bus driver, medical personnel and patients sharing the same hospital ward.
Three medical staff have shown symptoms of upper respiratory tract infections and are taking medicine.