Studies led by the Roslin Institute have inspired a national campaign in the United Kingdom to help reduce the risk of spreading infectious diseases such as African swine fever. Scientists’ predictions for the potential impact of a UK outbreak of ASF – which in recent years has spread from China to Western Europe – have led to moves encouraging the cleaning of vehicles used for transporting livestock.
The #MuckFreeTruck campaign, led by the National Pig Association and the Animal Health Development Board, could help curb the effect of infectious disease on the UK pork industry, whose exports are worth more than 400 million pounds ($519 million USD) each year.
“Reducing contamination in livestock transport vehicles would lower the risk of disease spread and limit the potential impact that outbreaks might have on farmers, their herds and the economy,” says Thibaud Porphyre, research rellow for the Roslin Institute.
Researchers created computer models of the spread of ASF, using figures from two national databases of pig movements, in England and Wales and in Scotland. Their study showed that if the disease entered key pig-producing areas, it could spread country-wide within weeks. Producers, processers and hauliers of livestock should prevent dirty lorries from entering farms and leaving processing plants, they found.
Their research, carried out in collaboration with the Pirbright Institute and the Royal Veterinary College, has been endorsed by the UK Government’s Department for Environment, Food and Rural Affairs, and by the chief veterinary officers for Scotland and the UK.
Policymakers are working to limit the likely impact of the disease, which has caused outbreaks in Ukraine, Poland and Belarus and recently spread to Belgium, but has not yet reached the UK. Symptoms of ASF are difficult to detect, and infected pigs can take up to more than two weeks to show signs of illness.
“There is no point becoming good at biosecurity once disease has hit the country – by then it is too late. People need to be thinking about good biosecurity now,” says Zoe Davies, chief executive of the NPA.
The research was supported by the Scottish Government through its Center of Expertise on Animal Disease Outbreak, a consortium of seven institutions including the Global Academy of Agriculture and Food Security and the Roslin Institute.