no differences were found in the skin and digestive tract of persistently infected clinically healthy calves and uninfected controls , despite widespread virus-antigen presence in keratinocytes ( stratum basale and stratum spinosum ) of skin and upper digestive tract , in dermal/subepithelial macrophages ( m phi ) , in gut-epithelial cells , and in lymphocytes and m phi/monocytes of blood and lymphoid tissues of the former group .
C0024264
lymphocytes
C0024296
lymphoid tissues