China has culled 6 million birds in a northeastern region of China hit by the country's fourth outbreak of avian flu in a month, state media said on Monday.
All poultry within a 3-km (2-mile) radius of the site in Liaoning province where the deadly H5N1 virus was found last week had been killed, Xinhua news agency said.
[...] Authorities had placed 192 people in the area, one of whom has acute bronchitis, under medical observation, the China Daily said, citing the health ministry.
Source. Today China closed all poultry markets in Beijing. Hopefully we will know more soon, but these are very worrisome developments.