1984 Volume 37 Issue 8 Pages 515-518
Actinobacillus suis was isolated from various organs of 2 dead pigs. The pigs had white spots in the liver, petechiae in the kidney and a reddish tint a round lymph nodes. Multiple bacteial emboli were observed in blood vessels of many organs. They were composed of fibrin exudation and mononuclear cells. Some bacterial colonies were attached to the blood vessels, causing endophlebitis. Interstitial pneumonia, meningitis and hepatic necrosis were noticed. Two pigs were inoculated intravenously and two intramuscularly with A. suis isolated from the dead pigs. Each one of them died in 15 hours after inoculation and was found to have bacterial emboli in many tissues showing essentially the same distribution of lesions as in the 2 dead pigs.
