Veterinary assistants and laboratory animal caretakers look after animals in laboratories, animal hospitals, and clinics. They care for the animals by performing routine tasks under the supervision of scientists, veterinarians, and veterinary technologists and technicians.
Dysentery is an inflammation of the intestine causing diarrhea with blood. Other symptoms may include fever, abdominal pain, and rectal tenesmus (a feeling of incomplete defecation).
As the dysentery bacteria die off and as a result of their vital processes, poisonous substances (toxins) are formed. These are absorbed through the mucous membrane of the large intestine and enter the blood stream, causing systemic poisoning (intoxication). Diarrhea occurs as a result of intestinal lesions.