Laurene Powell Jobs. Laurene Powell Jobs (born November 6, 1963) is an American businesswoman, executive and the founder of Emerson Collective, which advocates for policies concerning education and immigration reform, social justice and environmental conservation.
Mycobacterium tuberculosis. S aureus is the most common cause of bacterial pericarditis in children, causing approximately 40-80% of cases. Within the first 3 months after cardiac surgery, S aureus is the most common cause of purulent pericarditis.
Pericarditis often occurs after a respiratory infection. Chronic, or recurring pericarditis is usually the result of autoimmune disorders such as lupus, scleroderma and rheumatoid arthritis, disorders in which the body's immune system makes antibodies that mistakenly attack the body's tissues or cells.