Surveillance Tightened After Dead Goose In Qinghai Tested Positive For H5N1 Virus

XINING, CHINA - MAY 4: (CHINA OUT) A worker disinfects chickens transported to a chicken slaughtering factory on May 4, 2006 in Xining of Qinghai Province, China. Surveillance has been stepped up in Qinghai Province following the discovery of a dead wild goose carrying the bird flu virus in Gangcha County. The Ministry of Agriculture said on April 30 that the dead bar-headed goose found in the county tested positive for the H5N1 strain, the highly contagious strain that has killed 12 people in China. Qinghai is known as a stopping point for migrating birds and the virus killed thousands of bar-headed geese at a nature reserve in the region in 2005, according to state media. (Photo by China Photos/Getty Images)