Fiebre sin foco en menores de 5 años: actualización del enfoque diagnóstico basada en la evidencia

Introduction

Fever without a source represents a frequent diagnostic challenge in pediatric emergency care, particularly in children under 5 years of age, due to the difficulty of distinguishing self-limited viral illnesses from serious bacterial infections. Clinical assessment remains fundamental; however, the incorporation of biomarkers, rapid diagnostic tests, and risk-stratification algorithms has modified the diagnostic approach to these patients.