An 88-year-old bedridden woman with multiple comorbidities presented with fever, altered mental status, and a large sacral pressure ulcer infested with maggots. Blood cultures, initially showing Gram-negative rods, were identified as Ignatzschineria larvae through MALDI-TOF MS and 16S rRNA gene sequencing. The patient was treated with meropenem and local wound care, leading to clinical improvement and discharge. This case highlights a rare bacteremia caused by a maggot-associated bacterium, emphasizing the need for advanced diagnostic techniques in polymicrobial infections, especially in vulnerable patients with myiasis.
Key note: Ignatzschineria larvae bacteremia can occur in patients with maggot-infested wounds, requiring specific identification for appropriate treatment.