comparison of the pathogenicity of mycobacterium paratuberculosis and mycobacterium spp isolated from the wood pigeon (columba palumbus-l).the pathogenicity of 4 strains of mycobacteria isolated from wood pigeons and 2 strains of mycobacterium paratuberculosis was compared in calves, mice and chickens. three of the 4 wood pigeon strains and the 2 m. paratuberculosis strains produced clinical johne's disease in calves. all 6 strains were pathogenic for mice and the 4 wood pigeon strains were pathogenic for chickens. the strains were not agglutinated by antisera to strains of the m. avium complex and all were mycobactin-dependent. it ...19854067024
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