Subtyping, a form of polymorphism, is when calling code can be agnostic as to whether an object belongs to a parent class or one of its descendants. For example, a function might call make_full_name() on an object, which will work whether the object is of class Person or class Employee.
The history may include inappetance, or loss of appetite, lethargy, and fever. Severely affected horses may have a history of high fever (105 â 106Â° F), depression, ventral edema, weight loss, ataxia, or incoordination, and epistaxis, or nosebleed.he virus is transmitted primarily by blood-feeding horseflies and deerflies. Infection with EIAV results in recurring, cyclic episodes of fever, lethargy, thrombocytopenia, or low platelets, anemia, and in some cases, weight loss, ventral edema, petechiation, or pinpoint bleeding in the skin, hemorrhage, and death.
Mud fever affects most horses and ponies during winter and early spring, resulting in painful sores and scabs, which in severe cases can make a horse lame. Mud fever most commonly affects the pastern and heel area but can also affect the upper leg, the belly, and in some cases the neck area (also known as Rain Scald).