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).
Before Learning About Staph Infections, Learn About Staph Bacteria First. Staphylococcus is a type of bacteria that has 30 different species. When people use the term âstaph infection,â theyâre usually referring to the Staphylococcus aureus (S. aureus) subtype, which is the species responsible for most staph infections.