[Salmonella abortus ovis carrier state in dogs and rats]

Serologic and bacteriologic investigations were carried out with 10 dogs, guarding sheep flocks with and without Salmonella abortions, and 17 grey rats. It was found that both species of animals could harbour Salmonella abortus ovis provided they swallowed infective material (aborted fetuses and fetal membranes). It was shown that although lasting but 2 to 3 months only the carrier state could play a definite part in the epizootiology of Salmonella abortions in sheep.