Back to today’s briefing

Story perspectives

U.S. Faces Quad-Epidemic: Flu, COVID, RSV, Norovirus Surge

1/25/2025

49 8

Summary

Story summary

This winter, the U.S. is bracing for a daunting "quad-emic" as flu, COVID-19, RSV, and a spike in norovirus cases converge, with outbreaks reaching a 12-year high. Experts warn that a new strain and increased social gatherings are fueling this surge, putting older adults at heightened risk of severe complications and dehydration.

1 of 1

Story summary

This winter, the U.S. is bracing for a daunting "quad-emic" as flu, COVID-19, RSV, and a spike in norovirus cases converge, with outbreaks reaching a 12-year high. Experts warn that a new strain and increased social gatherings are fueling this surge, putting older adults at heightened risk of severe complications and dehydration.