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 infections can be broadly classified into two groups: skin and soft tissue infections, and invasive infections. Skin and soft tissue infections Most infections caused by staph bacteria are relatively minor and only affect the skin or underlying tissue. 1  Common examples include: 2  boils â red, painful lumps on the skin that usually develop on the neck, face, armpit or buttocks.