Wayne Lukas had been battling a severe Methicillin-resistant Staphylococcus aureus (MRSA) blood infection. He died on Saturday at the age of 89.

For more information on staph, go to the Minnesota Department of Health Web site. Methicillin-resistant Stapyhylococcus aureus, or MRSA staph infections, have become a major public health issue ...

PANDAS syndrome is the result of an autoimmune response to a strep infection. Learn about causes, symptoms, treatment, and more at WebMD.