A fever is a high body temperature. A temperature of up to can be helpful because it helps the body fight infection. Most healthy children and adults can tolerate a fever as high as to for short periods of time without problems. Children tend to have higher fevers than adults.
The degree of fever may not show how serious the illness is. With a minor illness, such as a cold, you may have a temperature, while a very serious infection may cause little or no fever. It is important to look for and evaluate other symptoms along with the fever.