Diagnosis of a fever is very easy and straight forward. A hand placed gently on the forehead of a person is an age old diagnosis technique that can easily tell if a person has a fever or not. In order to gain a more accurate indication of the body’s temperature, oral and rectal thermometers can be used.

However, in addition to recognising that there is a fever, the underlying illness or disease will also need to be diagnosed.

A fever is a symptom of an underlying illness or disease, as such a fever is transmitted according to how this underlying illness or disease is transmitted.