Via the Korea Times: Avian Influenza Alert Upgraded. Excerpt:
The government upgraded the alert level on avian influenza from "attention" to "precaution" Thursday in an attempt to raise people’s awareness of the highly virulent H5N1 virus following two outbreaks in Iksan, North Cholla Province, 280 km south of Seoul.
After holding consultations with the National Security Council (NSC) and relevant institutions, the government decided to upgrade the official alert level even though the second highly virulent bird flu case was detected within the "surveillance zone"— a 10-kilometer radius of the initially infected farm.
There are four steps in the alert levels and they are determined by the seriousness of the situation —"concern," "attention," "precaution" and "serious."
Related to this, Minister of Agriculture and Forestry Park Hong-soo said the government has decided to expand the radius of the area for culling bird flu-infected poultry from 500 meters to 3 kilometers.
As a result, an additional half a million fowl will be slaughtered in a bid to prevent the spread of the deadly strain of bird flu, government officials said.
