MRSA

The USA300 is a strain of MRSA that is progressively becoming more common and thusly, more contagious. MSRA is a type of Staphylococcus aureus bacteria that has become Methicillin (an alernative form of Penacillin) resistant. Normally, the bacteria is harmless, but because of certain mutations it has become a life-threatening, flesh eating disease, capable of liquefying limbs and/or organs within hours. It is still very small scale at the moment, with the majority of the cases being identified in San Franscisco, but it's still really scary. Read the article in the Observer here.
I'm scared this will make zombies.