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).
Staph infection: Causes, treatment and prevention. A staph infection is a group of infections caused by staphylococcus, which can result in anything from a minor skin infection to a serious infection that can affect the lungs, heart and blood. Although many staph infections can be treated, there are some that are antibiotic resistant, which are more harmful.