Fungal Infections Associated with Contaminated Steroid Injections

Area of Science:

• Infectious Diseases
• Public Health
• Mycology

Background:

• The 2012 New England Compounding Center (NECC) outbreak was the largest healthcare-associated fungal infection event in U.S. history.
• It involved 751 patients with serious infections, including fungal meningitis and spinal osteomyelitis, resulting in 64 deaths.
• Contaminated methylprednisolone acetate injections were the source, primarily linked to the rare pathogen Exserohilum rostratum.

Purpose of the Study:

• To detail the epidemiology, clinical manifestations, and treatment outcomes of the 2012 NECC fungal outbreak.
• To identify the causative pathogen and its source.
• To inform public health responses and clinical management strategies for similar future events.

Main Methods:

• Retrospective analysis of patient data, including clinical presentations and outcomes.
• Microbiological investigation, including isolation and whole-genome sequencing of the causative mold.
• Review of treatment protocols and their evolution during the outbreak.

Main Results:

• 751 cases of fungal infection reported, with manifestations including meningitis, stroke, and localized spinal infections.
• Exserohilum rostratum identified as the primary pathogen, originating from contaminated methylprednisolone lots.
• Treatment strategies evolved, with prolonged antifungal therapy (≥6 months) showing successful outcomes for most patients.

Conclusions:

• The NECC outbreak underscores the critical need for stringent sterile compounding practices and regulatory oversight.
• Exserohilum rostratum can cause severe invasive infections, necessitating prompt diagnosis and targeted antifungal therapy.
• Effective management requires a multi-disciplinary approach, including surgical intervention and prolonged antifungal treatment.