Noted: The bacteria that caused Ault’s infection, Staphylococcus aureus, commonly lives on the human body. An underlying illness or compromised immune system can turn its presence into a medical emergency, but “for most people, Staphylococcus aureus is going to be nothing. It just sets up shop in their nose, not doing anything,” says Dr. Caitlin Pepperell, M.D., an infectious disease specialist at University of Wisconsin-Madison.
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