Definition Ascariasis is the infestation of swine by the roundworm, Ascaris suum, which can cause pneumonia, hepatitis, and ill thrift. Occurrence Ascariasis occurs worldwide in countries that raise significant numbers of swine. All ages are affected but ascariasis is more severe in young, growing pigs. It is the most prevalent and most economically important internal parasite…
Definition Pseudorabies (PRV) is a major viral disease manifested in swine by signs and lesions that vary among different age groups. The disease is characterized by three overlapping syndromes that reflect lesions in the central nervous system (CNS), respiratory system or reproductive system. Occurrence Among domestic animals, swine are the only natural host of pseudorabies…
Definition An infectious disease of swine characterized by reproductive impairment or failure and often by localization of Brucella suis in bones and joints of breeding stock. Occurrence Swine brucellosis (SB) occurs primarily in domesticated swine with feral swine and possible wild hares as potential reservoirs of infection in some countries. The disease occurs in many countries where…
