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Severity of gross pathology of bTB in different tissues of vaccinated and control calves. Mann–Whitney test was used to compare the severity of pathology between vaccinated and control calves in different tissues. The pathology was more severe (p = .04); in the thoracic lymh nodes of control calves than in the thoracic lymph nodes of vaccinated calves; total pathology was more severe (p = .03) in tissues of control calves than in tissues of vaccinated calves
