COLUMBIA, S.C. (WRDW/WAGT) – South Carolina was among the states experiencing the highest level of flu spread in the U.S. to end 2025, according to the latest data reported by the CDC.
Five states, including South Carolina, were experiencing “very high” flu activity at Level 13, the CDC’s highest level, by Dec. 20, 2025. Also ranked at Level 13 that week were Colorado, Louisiana, New Jersey and New York, the CDC’s Weekly Influenza Surveillance Report showed.
Data had not yet been published for the week of Christmas — though experts predict there will be a spike in reported cases following holiday celebrations.
Here’s a look at the flu data and how it changed in the last two months of 2025…