The Centre for Health Protection has learned of four avian influenza A (H7N9) cases on the Mainland.
A patient from Hunan is in critical condition after being exposed to poultry.
Two patients from Shenyang and Liaoning are in stable condition, with the fourth patient from Guizhou under hospital supervision.
The centre reminded travellers to the Mainland and other avian influenza-affected areas not to visit live poultry markets and farms, and to avoid contact with poultry and their droppings.
