We’re finally understanding why some kids get strep throat over and over again

A specific immune deficiency may explain why some families seem so prone to this problem.

There’s was probably one kid in your class who always got strep throat. It seemed like they were out every few months like clockwork, often for days at a time. Maybe you were that kid. Immunologists have known about this phenomenon for a long time—some children are just prone to getting strep repeatedly. But until recently, they had no idea why.

That’s finally starting to change.

Popular Science-2019