Single strep bacteria protein sets off white blood cell's early warning system

Monday, August 7, 2017 - 16:02 in Health & Medicine

Group A Streptococcusbacteria -- the cause of strep throat and flesh-eating infections -- have been well studied for nearly a century. But researchers recently made a surprising discovery: strep's M protein alone wipes out macrophages, but not other types of immune cells. The macrophages' self-sacrifice serves as an early warning of infection to the rest of the immune system.

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