alimentary tract:  or  'alimentary canal'; is all structures which conduct food from the mouth through to the anus

benign: a condition which is likely to be recovered from or not harmful

bovine: any members of the family Bovidae which includes the ox and cattle

capsid:  an outer shell of protein that protects the inner structure of a virus

congenital: present and existing at time of birth

cross-protection: a vaccine that is able to protect an animal from more that one type of the virus

cryosurgery:  the destruction of tissue by application of extreme cold

cutaneous: pertaining to the skin

epidermis: the outermost and nonvascular layer of the skin

esophogeal groove: also called 'reticular groove'; an anatomical structure consisting of two lips which can close under proper stimulus such as nursing - in young calves it provides a method for milk to go from the esophagus straight into the omasum, by-passing the rumen

fomite: an inanimate object or material on which disease producing agents may be transferred

immunosuppressed: diminished immune responsiveness

inguinal: pertaining to the groin

in utero:  while in the uterus, prior to birth

keratinocytes: the cells of the epidermis that synthesize keratin

malignant: a comdition which is likely to become worse, eventually leading to death

papules: small circumscribed, solid, elevated lesions of the skin

papillomavirus: the virus that causes warts

pedunculated: having a stem-like connecting part

rumen: the largest part of the bovine stomach, it occupies most of the left side and the floor of the abdomen

sarcoid:  a common cutaneous neoplasm of horses, cause is unknown but an association with BPV has been determined

ventral: pertaining to the abdomen