Unexplained fever with temperatures above 38 C for more than 3 days.

Find the cause of an unexplained and ongoing fever.

Of these patients, 29% had either unexplained fever or unexplained weight loss when first seen.

Other symptoms that may occur include weight loss, unexplained fever, night sweats and fatigue.

Have uterine tenderness or unexplained fever (possible symptoms of infection).

Guidelines for the use of antimicrobial agents in neutropenic patients with unexplained fever.

Unexplained persistent fever (intermittent or constant for longer than one month)

Ending November 2008, infants started to die after developing unexplained fevers and vomiting.

A baby's symptoms may include unexplained fever, lack of appetite, vomiting, and urine that has an unusual smell.

Uterine tenderness, unexplained fever, or weakness (possible symptoms of infection).