About 90,000 birds have been killed in South Korea as a precautionary measure against avian influenza, or bird flu. The slaughter comes after local authorities determined they might have been exposed to a strain of bird flu spreading from migratory birds, Yonhap news agency reported. About 100 chickens perished on one farm in central South Korea, in South Chungcheong Province. Fecal samples from three of the chickens tested positive for a strain of bird flu, provincial

authorities said Wednesday. In response to the findings, 90,000 birds being raised at the farm, and 1,108 chickens and ducks being raised within a 1.9-mile radius of the infected birds were slaughtered, according to the report. A mobile control center has also been set up to monitor more than 1 million birds at 295 farms within a 6-mile radius of the infection. READ MORE