Another outbreak of bird flu has been reported in China.

The latest outbreak is at poultry farms in the northern province of Shanxi.

The official Xinhua news agency reported Monday the local government has quarantined the area and experts and veterinarians have started disinfection and culling.

A campaign to teach residents how to protect themselves against the virus has been launched.

China has recorded 35 outbreaks of bird flu since last October.

A human case of bird flu was confirmed on June 15 in the southern province of Guangdong, bringing the country's total human infections to 19.

Twelve people have died as a result of the virus.