Answers are grounded in this paper and cite their sources.
Fever of unknown origin (FUO) is defined as a temperature elevation of 101 degrees F (38.3 degrees C) or higher for 3 weeks or longer, the cause of which is not diagnosed after 1 week of intensive in-hospital investigation. This article discusses the causes, diagnosis, and treatment of FUOs.
No takes yet. Share an insight, caveat, or question.
B. A. Cunha (1996) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: