A type of phagocyte (cell in the body which 'eats' damaged cells and foreign substances such as virus and bacteria).... ↪ Read more

Chemicals produced by T lymphocytes. Some lymphokines signal macrophages and other phagocytes to destroy foreign invaders.... ↪ Read more

The class of cells in the body which are responsible for mounting an immune response. Two main types are B cells and T cells... ↪ Read more

Part of the immune system of an animal. Small masses of tissue that contain white blood cells called lymphocytes. Blood from the nearby area is filtered through the lymph node allowing foreign or infectious material to be recognized and destroyed if possible.... ↪ Read more

A low passage vaccine contains virus particles which have been attenuated, or weakened, less than those in the 'average' vaccine. Low passage vaccines can generally elicit an immune system response in young animals who have a maternal antibody level that would prevent them from responding to an... ↪ Read more

The largest organ in the abdomen, responsible for producing enzymes required for digestion of food, and bile that helps to digest fat. The liver also detoxifies the blood and may be damaged in the process.... ↪ Read more

Digestive enzyme, produced by the pancreas, which breaks down fat.... ↪ Read more

A condition in which the numbers of white blood cells in the blood are lower than normal. Low white blood cell count.... ↪ Read more

A dormant stage of disease; the patient is infected with an organism, but is not yet ill.... ↪ Read more

The worm-like offspring of an insect (plural larvae).... ↪ Read more

The lower part of the intestinal tract, usually made up of the colon, cecum and rectum. Bacteria that live harmlessly in the large intestine help to digest complex carbohydrates.... ↪ Read more

Producing milk. When a female cat is breast-feeding young offspring.... ↪ Read more