Bird flu, or avian influenza, is a viral infection spread from bird to bird. Currently, a particularly deadly strain of bird flu - H5N1 - continues to spread among poultry. South Korea's Ministry of Agriculture, Food and Rural Affairs said it had detected a fresh outbreak of bird flu at a farm in the country's south and ordered the culling of 12,300 fowls as a preventive measure.
South Korean authorities said they were carrying out epidemiological investigations in the affected farms, situated some 300 km southwest of Seoul, to determine whether the detected H5 strain was highly pathogenic.
The results were expected to come in by Tuesday, Yonhap news agency reported. Prime Minister Lee Nak-yon urged the Ministry to use all available resources to prevent the spread of the virus, such as implementing a ban on moving livestock between places and disinfecting farms.
The country has witnessed several such outbreaks since last year, including one that led to the culling of over 33 million birds last November, making it the most extensive containment effort ever carried out in South Korea.
The mass culling caused a shortage of eggs in the Asian nation, which forced it to import around 25 million of them from the US and Spain.