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.
A scar results from the biological process of wound repair in the skin-a natural part of the body's healing process. Any burn, injury, skin condition, or other trauma, such as surgery, can cause a scar.They form when the dermis (deep, thick layer of skin) is damaged. The body forms new collagen fibres (a naturally occurring protein in the body) to mend the damage, resulting in a scar.The new scar tissue will have a different texture and quality than the surrounding tissue; while most scars are flat and pale, some can be raised, sunken, or pitted in appearance.he body forms new collagen fibres (a naturally occurring protein in the body) to mend the damage, resulting in a scar. The new scar tissue will have a different texture and quality than the surrounding tissue; while most scars are flat and pale, some can be raised, sunken, or pitted in appearance.