South Korean naval personnel, from chemical, biological and radiological units, spray disinfectant in Changwon on Tuesday following the country’s worst avian influenza outbreak.

According to Yonhap, Acting President and Prime Minister Hwang Kyo-ahn said on Tuesday the spread of avian influenza since mid-November is almost under control.

To prevent additional outbreaks, quarantine authorities will continue to take "preemptive" measures.