date:Feb 17, 2013
ntacts with the two patients have been put under medical observation, but none of them has been found ill so far.
The human-infected highly pathogenic avian influenza is an acute respiratory infectious disease mainly caused by the deadly H5N1 subtype virus. The main symptoms include high fever and pneumonia.
The human case of bird flu is mainly transmitted from poultry to humans and there are no reported outbreaks of sustained human-to-human transmission.