Optical spectroscopy of breast biopsies and human breast cancer xenografts in nude mice.

Rotavirus gastroenteritis is one of the main causes of acute diarrhea in young humans and animals worldwide. The colostrum-deprived, artificially-reared, neonatal pig has been extensively used in our laboratory as a model animal for studying an experimentally-induced rotaviral gastroenteritis. Details on procurement of newborn pigs, immunological characteristics and artificial rearing conditions of colostrum-deprived neonatal pigs as well as on rotavirus inoculation, clinical manifestations and evaluation of intestinal damage caused by rotavirus infection are described.