In the early part of the 20th century, Serratia marcescens was considered a non-pathogenic organism and was used in medical experiments and as a biological warfare test agent [1]. Since the mid-1970s, however, Serratia species have been recognized to cause a full spectrum of human clinical disease. Additionally, Serratia species may harbor multidrug-resistance mechanisms that can complicate treatment decisions. This article will review the microbiology, epidemiology, clinical features, diagnosis, and treatment of infections caused by Serratia species.
Scar tissue is the formation of fibrosis connective tissue that is created to act as a protective barrier. It replaces healthy tissues that have been damaged due to a number of reasons. Scar tissue generally forms in muscles, tendons, ligaments, fascia, and joints. It is also called an adhesion.
Bony scar tissue, called a callus, will form on the bone after a fracture. Scar tissue itself is the bodyâs normal method for healing body parts that are injured. Scar tissue is formed by collagen. After an injury, your body lays down collagen that will become normal healthy tissue. The collagen cells are placed near the injured tissue in a random fashion, and this leads to scar tissue.