The fifth confirmed case comes three days after the ministry issued its highest alert level following the simultaneous outbreak of two of the seven types of the disease _ types A and O.
It is feared that pig farms will be the hardest hit, because none of more than 11 million pigs nationwide has been vaccinated against the highly infectious airborne A virus.
According to the Korea Pork Producers Association, when vaccination against the disease became mandatory in 2010 after 336,000 animals were culled, pigs were only vaccinated for FMD type O.
![](https://www.pig333.com/3tres3_common/dist_nou/css/images/imb5.png)
Sunday February 12, 2017/ The Korea Times/ Korea.
http://koreatimes.co.kr