Encyclopaedia of Animal Diseases (Protozoan Diseases)
A 'disease' is any impairment of normal physiological function affecting all or part of an organism, especially a specific pathological change caused by infection, stress etc., producing characteristic symptoms. As such disease is a condition of the body or a part of it in which functions are disturbed or deranged. A disease may be caused by excess or deficiency or absence a disease agent which ca...
A 'disease' is any impairment of normal physiological function affecting all or part of an organism, especially a specific pathological change caused by infection, stress etc., producing characteristic symptoms. As such disease is a condition of the body or a part of it in which functions are disturbed or deranged. A disease may be caused by excess or deficiency or absence a disease agent which ca...
