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).
The symptoms from these types of staph infections can range from mild to serious. A staph infection occurs when the staphylococcus bacteria gets inside the body. Around a third of people carry staph bacteria either on the surface of their skin or in their nose, and in most cases it does not cause any problems.