First reported in domestic pigs in eastern Africa in 1921, African swine fever kills up to 90 percent of pigs.
UK pig keepers are being reminded not to feed kitchen scraps to animals to prevent disease outbreaks.
Veterinary experts have reported new cases of African swine fever in the Kherson and Odesa regions
A quarantine has been introduced in the area, which has a cattle population of 22,000 swine.
The State Service of Ukraine for Food Safety and Consumers Rights Protection has recorded 140 cases of African Swine Fever since February 2017.
The disease is now in five districts of Northern Province.
With other cases of African swine fever emerging on the Western borders of infected regions, it appears that the virus is continuing its Westerly path.
If African swine fever becomes established in wild boar or feral pig populations, effective control becomes challenging.
This assessment offers a status report and clinical information on African swine fever in Europe.
UK government scientists have published update on African swine fever.