Whooping cough cases surged in Greenville County, SC, in 2025, with 24 cases reported by late July, making it one of the hardest-hit areas in the Upstate, second only to Spartanburg County. The Upstate, including Greenville, saw significant activity, prompting health officials to emphasize vaccination and hygiene as cases rose statewide and nationally, with a substantial increase compared to 2024, said the SC Department of Health. Whooping cough is a highly contagious respira
