Once scientists grew these Staphylococcus lugdunensis bacteria in a lab dish, they were able to isolate a compound that's lethal to another strain commonly found in the nose that can make us sick — Staphylococcusaureus.
New York Giants' Daniel Fells makes a catch during a practice at NFL football training camp in August. Fells is currently suffering from a serious MRSA infection; it is unclear if he will return to football.
Dorothea Handron suffered an infection after a surgeon unknowingly pierced her bowel during a hernia operation. She became so ill that doctors placed her in a medically induced coma for six weeks.
Jim R. Bounds/AP Images for Kaiser Health News