A group of 23 calves (2-3 months) showed diarrhoea after weaning and short
distance transportation. Buccal cavity lesions of papular nature on the muz
zle, gingivae, buccal papillae, inner surface of the lips and hard palate w
ere observed. Buccal cavity lesions showed hyperplastic epithelium which co
nsisted of focal areas of ballooning degeneration. Eosinophilic intracytopl
asmic inclusion bodies, characteristic of bovine papular stomatitis were se
en in the affected cells. At necropsy, sexual and asexual forms of coccidia
were determined on the epithelium of the caecal and colonic crypts. Large
number of oocysts were detected on the faecal examination. All the affected
calves were treated by intramuscular injection of sulphadimidine. Newly we
aned calves were fed lasolosid as prophylaxis. One month after the onset of
outbreak the syndrome subsided.