The child is 1 to 2 years old with a high fever lasting more than 24 hours.

You have a cold and: Your fever lasts longer than 2 to 3 days.

A fever lasts longer than 48 to 72 hours in older children and adults.

A fever lasts longer than 48 hours after receiving a shot.

The fever lasts longer and is recurring, for months in some cases.

My dad said the fever lasted for weeks, sometimes even months.

A mild fever without an obvious cause lasts longer than 4 full days.

The fever lasts three to seven days, and the convalescence may be long.

Typically, the fever lasts for two days and then ends abruptly.

The fever lasts for 2-4 days but recur generally at 4-8 weeks.