CDC Finds Significant Increase in Invasive Strep Throat Strain in Several States

A study found that rates more than doubled over a nearly decade-long period. The incidence was high among those 65 and older, among others.

The Centers for Disease Control and Prevention headquarters in Atlanta on April 23, 2020. (Tami Chappell/AFP via Getty Images

The frequency of invasive group A strep infections more than doubled over a nearly 10-year period, according to a study published by the U.S. Centers for Disease Control and Prevention this week.

The study, led by CDC researchers and published in the JAMA Network on April 7, looked into invasive group A streptococcus bacterial infections (GAS) collected through a network known as the Active Bacterial Core, which covers 10 states and around 35 million people.