Authorities of districts adjoining Myanmar, Champhai, Lunglei, Serchhip, Lawngtlai and Saiha have been instructed to issue prohibitory orders, Director of the state Animal Husbandry and Veterinary L B Sailo told PTI.
Though there has been no fresh infection, he said, but the state government was taking preventive measures.
"The Centre has issued a stern warning to Mizoram on the import of pigs from Myanmar which shares a 404 km international border as PRRS is always present in the neighbouring country," Sailo said.