Rheumatoid arthritis (RA) is a long lasting autoimmune disorder that primarily affects joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest.Most commonly the wrist and hands are involved with typically the same joints involved on both sides of the body.heumatoid arthritis (RA) is a long lasting autoimmune disorder that primarily affects joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest.
tuberous sclerosis a congenital heredofamilial disease, transmitted as an autosomal dominant trait, characterized principally by the presence of hamartomas of the brain (tubers), retina (phakomas), and viscera, mental retardation, seizures, and adenoma sebaceum, and often associated with other skin lesions.
Answer by Biophilia. Confidence votes 277. Viral infections differ in how long they are contagious. A viral cold may be contagious for seven to ten days; cold sores or genital herpes may be contagious throughout life during the time when an outbreak is present, just before an outbreak, or during symptoms.HIV is contagious throughout life.nswer by Biophilia. Confidence votes 277. Viral infections differ in how long they are contagious. A viral cold may be contagious for seven to ten days; cold sores or genital herpes may be contagious throughout life during the time when an outbreak is present, just before an outbreak, or during symptoms.