Postpandemic Rebound in Noninvasive Group a Streptococcal Disease is not Synchronous with Winter RSV and Influenza Epidemics

An increase in invasive group A Streptococcus infections was reported in 2022, associated with intense respiratory virus circulation. We describe a marked increase of noninvasive group A Streptococcus infections. Although the rise coincided with epidemics of respiratory syncytial virus and influenza, it continued after detection of these viruses fell to low levels, suggesting that other factors have contributed to this epidemiologic change.