(National Diagnostic Veterinary Research Institute “Prof. Dr. Georgi Pavlov”, National Reference Laboratory for Classical Swine Fever and African Swine Fever, 15, Pencho Slaveykov Blvd., 1606 Sofia)’,
(National Diagnostic Veterinary Research Institute ‚Prof. Dr. Georgi Pavlov‘, National Reference Laboratory for Classical Swine Fever and African Swine Fever, 15, Pencho Slaveykov Blvd., 1606 Sofia)“