China has reported two human cases of bird flu in the southwestern city of Guiyang, say officials.

People who had close contact with the two patients are under medical observation but none have been found ill so far, the agency said. It reported that the pair did not have contact with birds before they developed symptoms.
The bird flu virus has killed 365 people worldwide since a major outbreak in 2003, according to the World Health Organisation.
It typically spreads from birds to humans through direct contact, but experts fear it could mutate into a form transmissible between humans.
China is considered one of the nations most at risk from bird flu epidemics because it has the world's biggest poultry population and many chickens in rural areas are kept close to humans.
Source-AFP