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Fever of Unknown Origin (PUO)

Investigation of persistent unexplained fever.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MSt MRCGP (General Practitioner)
Last reviewed: 30 August 2025
Infectious DiseasesGeneral PracticeOncology
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Clinical Guidelines

UK Standards for Microbiology Investigations - Identification of Pyrexia/Fever of Unknown Origin (PUO, FUO)
National