Unless the patient is acutely ill, no therapy should be started before the cause has been found. This is because non-specific therapy is rarely effective and may delay the diagnosis. An exception is made for neutropenic (low white blood cell count) patients or patients who are severely immunocompromised in which delay could lead to serious complications. After blood cultures are taken this condition is aggressively treated with broad-spectrum antibiotics. Antibiotics are adjusted according to the results of the cultures taken. HIV-infected persons with pyrexia and hypoxia will be started on medication for possible Pneumocystis jirovecii infection. Therapy is adjusted after a diagnosis is made.
Fever of unknown origin
Q fever
Relapsing fever
Pontiac fever
Enterotoxemia
Cat Scratch Fever
Morning sickness
Streptococcal pharyngitis