A Serratia marcescens brain abscesses in a preterm infant: An atypical presentation.

Brain abscesses represent a rare yet severe complication of bacterial sepsis in neonates, with Gram-negative bacteria being predominant etiological agents. While Serratia marcescens is an uncommon pathogen in neonatal sepsis and meningitis, it is recognized for its opportunistic nature and association with healthcare-associated infections. Despite advancements in antimicrobial therapies and diagnostic imaging, clinical outcomes in this population remain concerning, with high rates of mortality and long-term neurological sequelae. We present a case of a preterm neonate who developed multiple brain abscesses caused by Serratia marcescens.