The term cellulitis is commonly used to indicate a nonnecrotizing inflammation of the skin and subcutaneous tissues, a process usually related to acute infection that does not involve the fascia or muscles. Cellulitis is characterized by localized pain, swelling, tenderness, erythema, and warmth.
The regions on chromosomes 7 and 12 may coincide with the asthma and atopy loci on the same chromosomes. Polymorphism in the IL1 cluster on chromosome 2 has also been shown to influence the severity of the disease (95, 96).
Atopic (allergic) asthma is the most common disease of childhood and is strongly genetic in origin. Many genome-wide screens for asthma and its associated traits have now been carried out, and genetic linkage has been consistently identified in several regions.