豚のSalmonella choleraeuis感染症の発生

抄録

In February, 1970, an infection was found in a certain swinery in Nara Prefecture. Affected animals showed loss of appetite, hacking cough, a high fever, and slight diarrhea. In severe cases, cyanosis appeared at the nose, ear Lobes, and the lower part of the abdomen. Death occurred 4 or 5 days after manifestation of initial signs. Bacteria were isolated from the liver, spleen, and lungs of 2 carcasses just after death or in the moribund. stage They were identified as Salmonella cholera esuis.
Gross examination revealed edematous swelling of the lungs with dark reddish marginal areas, severe enlargement of the spleen, and cloudy swelling of the liver and kidneys. Under the microscope, there were numerous necrotic foci and activated sinusoidal endothelium in the liver. In the lungs were found atelectasis and thickening of the septal walls caused by a proliferation of histiocytic cells and infiltration of neutrophils. Toxoplasma gondii was negative. This case was presumed to be anacute type of hog paratyphoid.