STUDIES OF IMMUNITY TO MYCOBACTERIUM JOHNEI IN SHEEP.
D000818:Animals; D007109:Immunity; D016927:Mycobacterium avium subsp. paratuberculosis; D010283:Paratuberculosis; D012106:Research; D012756:Sheep; D034561:Sheep, Domestic; D014611:Vaccination; D014730:Veterinary Medicine
EXPERIMENTAL LAB STUDY; IMMUNITY; PARATUBERCULOSIS; SHEEP; VACCINATION; VETERINARY MEDICINE