Fever of unknown origin risk factors

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Since in many cases the definite etiology of FUO is not known therefore its risk factors are uncertain but mostly risk factors that are associated with FUO depends upon the underlying etiology.^[1][2]

Following are the risk factors:

• Common risk factors in the development of FUO may be environmental, social or familial.
• Family history
• Radiation exposure
• History of prior malignancies
• Any underlying inflammatory disease
• HIV infection
• Alcohol use
• Travel to endemic place
• Recent contact with infected person
• Contact with animals
• Low socioeconomic status
• Unvaccinated individual
• Occupational exposure
• Recent medications and antibiotics
• Recreational drugs

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