What is causing the outbreak of Flesh Eating Diseases?

What is causing the outbreak of Flesh Eating Diseases?: "Recently, in the news we have heard about perfectly healthy individuals who have had to have their limbs amputated because they were infected with NF, the deadly flesh eating disease (necrotizing fasciitis) caused by MRSA . I have known about this disease for awhile but recently it seems that more and more people are becoming victims of this terrifying disease."