High HDL cholesterol has been associated with a reduced risk for heart attack, but how it actually reduced the risk remained unclear. It turns out that some mechanisms that raise HDL do not seem to lower the risk of heart attack.
MRSA (methicillin resistant staphylococcus aureus) is a type of staphylococcus bacteria (staph) that is resistant to beta-lactam antibiotics. MRSA is contagious and can cause life-threatening infection. MRSA isnât found in the natural environment (soil or water).
A staph infection is an inflammation of the skin or internal organs, caused by the staph bacteria or its toxins. Staph infection may be mild, severe or even life threatening, and may appear as: 1  Skin infection. 2  Infection of the mucous membranes (sinusitis, epiglottitis, vaginitis).