A highly contagious African swine fever virus has been detected in the luggage of a traveler from Shanghai at Tokyo’s Haneda airport, the farm ministry said Friday.
Pork filled dumplings brought by the traveler on Oct. 14 have tested positive for the virus, becoming the second case of the virus being brought to Japan from overseas.
The disease was reported in China in August, while no domestic infections in Japan have been reported so far.
African swine fever is regarded as more lethal than conventional swine fever, also known as hog cholera, and there is no effective vaccine to protect pigs from the deadly disease.
According to the Agriculture, Forestry and Fisheries Ministry, the dumplings were homemade and uncooked. Both African and classical swine fevers pose no direct threat to human health.
In September, hog cholera infection was confirmed among domestic pigs in Japan for the first time in 26 years, in the central Japan city of Gifu.
It is unlikely that food infected with the African swine fever virus will cause an outbreak unless pigs are fed with infected food.