Photograph courtesy of Dr. G. Wobeser, Department of Pathology, WCVM
There are six types of bovine
papillomavirus that cause warts in cattle. They are numbered from
1 to 6, with each type having certain characteristics. Between
the 6 types of virus causing warts in cattle, there are only two types
of warts that are formed - fibropapillomas and epithelial
papillomas. Fibropapillomas are made up of virus infected skin
and connective tissue. Epithelial papillomas are made up of only
virus infected skin tissue and may be referred to as 'true warts'. (6,12)
(12)
| Bovine
Papillomavirus Type |
Wart
Type |
Location
of Warts |
| I |
Fibropapilloma |
Neck,
forehead, back, teats, penis |
| II |
Fibropapilloma |
Neck,
forehead, back, abdomen, anal-genital region |
| III |
Epithelial
papilloma |
Skin
anywhere |
| IV |
Epithelial
papilloma |
Esophagus,
esophageal groove, forestomachs, small intestine, urinary bladder |
| V |
Fibropapilloma |
Udder |
| VI |
Epithelial
papilloma |
Udder,
teats |
Photograph courtesy of Dr. G. Wobeser,
Department of Pathology, WCVM
Example of a bovine epithelial papilloma on cut section.
back to cattle
home
Example of a bovine epithelial papilloma on cut section.
back to cattle
home