Infectious Myositis


  • Sireesha Murala University of Missouri-Columbia
  • Arun Ram Eastern Virginia Medical School
  • Rajendran Vijayakumar Majmaah University
  • Elanagan Nagarajan Albany Medical Center



Infectious Myositis, bacterial myositis, viral myositis, fungal myositis, parasitic myositis, pathophysiology


Infectious myositis (IM), is the infection of the skeletal muscle tissue (particularly voluntary muscle), which is characterized by swelling, pain, tenderness and/or weakness and is most commonly caused by bacteria, frequently by Staphylococcal and Streptococcal species. Acute bacterial myositis is the diffuse infection of the muscle without an intramuscular abscess. Group A Streptococcus (GAS), is the most common cause of cellulitis and various muscular infections like pyomyositis, subacute myositis, acute myositis and malignant myositis. Viral agents are the most common cause of nonbacterial infectious myositis. Among viruses, influenza is the most frequent causative agent reported to cause viral myositis. Fungal infections of the musculature are relatively uncommon; most of the cases are seen in immunocompromised patients and the diagnosis is established through biopsy with the culture of the specimens. History of food ingestion along with eosinophilia points towards a parasitic causative agent.


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Author Biographies

Arun Ram , Eastern Virginia Medical School

Associate Professor

Physiological Sciences

East Virginia Medical School, Norfolk VA-23501-1980

Rajendran Vijayakumar, Majmaah University

Department of Biology, College of Science in Zulfi, Majmaah University, Majmaah 11952, Saudi Arabia.

Elanagan Nagarajan, Albany Medical Center

Department of Neurology

Albany Medical Center

Albany NY 12206




How to Cite

Murala, S., Ram , A. ., Vijayakumar, R. ., & Nagarajan, E. (2021). Infectious Myositis . RRNMF Neuromuscular Journal, 2(2).



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