Related Experiment Video
Updated: Apr 20, 2026

Author Spotlight: Advancing Pathogen Detection and Disease Assessment in Real-Time Using M-ROSE
Published on: March 1, 2024
Outbreak of fungal infections associated with contaminated methylprednisolone acetate: an update
April C Pettit1, Anurag N Malani
1Department of Medicine, Division of Infectious Diseases, Vanderbilt University School of Medicine, Nashville, TN, USA, april.pettit@vanderbilt.edu.
Abstract:
In September 2012, an unprecedented outbreak of fungal infections due to preservative-free, injectable methylprednisolone acetate (MPA) was identified. Exserohilum rostratum was quickly identified as the predominant organism involved in disease cases. Prior to this outbreak, little was known about the pathogenesis, treatment, and prognosis of infections due to this unusual brown-black mold. Almost 2 years after the onset of this outbreak, numerous epidemiologic and basic science studies have provided some guidance in understanding the epidemiology, clinical findings, diagnosis, and treatment of patients exposed to the contaminated medication. Additionally, this outbreak has directly led to the passage of legislation supporting increased regulation in the industry of pharmaceutical compounding. Many unanswered questions, particularly surrounding the long-term prognosis and outcomes for affected patients remain. However, it is clear that a strong relationship between clinicians caring for patients and public health as well as a rapid, effective public health response was critical in preventing additional cases of disease.
Insights
A 2012 fungal outbreak linked to contaminated methylprednisolone acetate (MPA) highlighted the need for better pharmaceutical compounding regulations. Public health responses were crucial in limiting further infections from Exserohilum rostratum.
Area of Science:
- Mycology
- Epidemiology
- Public Health
Background:
- An unprecedented outbreak of fungal infections occurred in September 2012.
- The infections were linked to preservative-free, injectable methylprednisolone acetate (MPA).
- Exserohilum rostratum was identified as the primary causative agent.
Purpose of the Study:
- To understand the epidemiology, clinical findings, diagnosis, and treatment of infections caused by Exserohilum rostratum.
- To analyze the impact of the outbreak on pharmaceutical compounding regulations.
- To identify critical factors in public health response to such outbreaks.
Main Methods:
- Epidemiologic surveillance and case investigations.
- Basic science studies on Exserohilum rostratum.
- Analysis of clinical data from affected patients.
Main Results:
- Exserohilum rostratum identified as the predominant pathogen.
- Studies provided guidance on diagnosis and treatment strategies.
- The outbreak spurred legislation for increased regulation of pharmaceutical compounding.
Conclusions:
- A strong clinician-public health relationship and rapid response were vital in preventing further cases.
- Long-term prognosis and outcomes for affected patients require further investigation.
- The outbreak underscored vulnerabilities in pharmaceutical compounding and regulatory oversight.
More Related Videos
09:57Passive Administration of Monoclonal Antibodies Against H. capsulatum and Others Fungal Pathogens
Published on: February 14, 2011
05:18Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
Published on: May 26, 2023
Related Concept Videos
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Antifungal Agents
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Fungal Phylum Microsporidia
Hypersensitivity Reactions: Cytolytic Reactions
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids