The Chinese Customs Administration has imposed a ban on the importation of cows and beef from Laos to prevent the spread of lumpy skin disease, following reports of outbreaks in Laos and last year in China. This disease, caused by the smallpox virus, has been spreading in Africa, the Middle East, and Europe since 2012. The World Organization for Animal Health recommends vaccination to control the spread. The disease has a 5-45% incidence and a mortality rate of around 10%.