1983 Volume 36 Issue 1 Pages 25-28
Four cows slaughtered as infected with tuberculosis were examined histopathologically and bacteriologically in Saitama Prefecture in 1980. All of them were non-visible lesion reactors, but Mycobacterium kansasii were isolated from one of them. This organism was first isolated from cows in Japan. A stronger reaction to mammalian tuberculin than to avian tuberculin was presented by guinea pigs sensitized with M. kansasii. Guinea pigs sensitized with M. kansasii and M. tuberculosis showed the same reaction to mammalian tuberculin as to avian tuberculin. Therefore, a cross-reaction between both organisms was suggested.
