It had its first outbreak earlier this month, also near the border with China.
African Swine Fever has claimed about half of the breeding herd in China and has spread to a number of nearby countries, such as Viet Nam and Cambodia which have also suffered staggering losses.
The disease began in China about a year ago and initially had little impact on pork supplies as pigs were culled to try to stop the disease from spreading.
Now that the culling has declined, the loss of herds is being felt in much-reduced pork supplies and rapidly rising retail prices.
Many hog-industry observers figure it will take about five years for the Chinese pork industry to recover.