Gastroenteritis is the inflammation of the stomach, small and large intestines. The severity of the infection seen in the extent of mucosal irritation, invasion or even ulceration, causes very acute symptoms like severe and sudden vomiting and diarrhea.
The definition of inbred is someone who is born from people who are closely related, or is something that exists in a person or animal from birth. When two cousins get married and have a child, this is an example of a time when the child isinbred.
Most common inbred strains of mice arose from a limited number of genetically distinct mice, and thus the genome of many of the common inbred strains are a mosaic of small (several genes) contiguous stretches of one of a small number of genetic variants.