In the past decade, methicillin-resistant Staphylococcus aureus, or MRSA, has ushered in a new era in the fight between man and bug. By harnessing the power of nature’s own antibiotics, scientists have engineered an enzyme known as a lysin that not only kills MRSA in mice but also works synergistically with antibiotics that were once powerless against the formidable organism. 
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Newly engineered enzyme is a powerful staph antibiotic
Using high resolution genome sequencing, scientists have tracked a deadly strain of multidrug-resistant Staphylococcus aureus as it traveled between South America, Europe and Southeast Asia. The new technique provides an unprecedented view of how MRSA evolved over decades and across entire continents, as well as on the short timescale of a few weeks within a hospital in Thailand. 
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Researchers track evolution and spread of drug-resistant bacteria across hospitals and continents
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