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.
Sexually Transmitted Diseases Overview (STDs). Sexually transmitted diseases (STDs, venereal diseases) are among the most common infectious diseases in the United States today.STDs are sometimes referred to as sexually transmitted infections, since these conditions involve the transmission of an infectious organism between sex partners.exually Transmitted Diseases Overview (STDs). Sexually transmitted diseases (STDs, venereal diseases) are among the most common infectious diseases in the United States today.