| the incidence of caseous lymphadenitis in alberta sheep and assessment of impact by vaccination with commercial and experimental vaccines. | in alberta, caseous lymphadenitis (cla) is one of the leading causes of lamb and mutton carcass condemnation. in this study, serologic results confirmed a high (50-94%) incidence of exposure to corynebacterium pseudotuberculosis, the causative agent of cla, in mature, unvaccinated sheep in southern alberta. to assess the efficacy and impact of vaccination with 2 commercial (glanvac-6 and case-vac) and 1 experimental (wc+ mdp-gdp) cla vaccines, a series of 3 field trials in 3249 ewes and lambs wa ... | 1998 | 9442938 |