Fever, Age 4 and Older - Prevention
The best way to prevent fevers is to reduce
your exposure to infectious diseases.
Hand-washing is the single most important prevention
measure for people of all ages.
Immunizations can reduce the risk for fever-related illnesses, such as the flu. Although no vaccine is 100% effective, most routine immunizations are effective for 85% to 95% of the people who receive them. For more information, see the topic Immunizations.