DENVER — Whooping cough, also known as pertussis, is making a comeback in Colorado after dropping to pandemic-era lows.
State health officials said more than 930 cases were reported each year in 2024 and 2025.
Colorado Department of Public Health & Environment Whooping cough cases in Colorado by year.
CDPHE said about two-thirds of the state's whooping cough cases involve people under 18.
“We’ve seen quite a rise in pertussis cases in our community,” Dr. Stephanie Harris, Kids First Pediatrics, said.
Colorado sees increase in whooping cough cases after dropping to pandemic-era lows.
Dr. Harris added that anyone who has not received the whooping cough vaccine within the last 10 years is at a higher risk of catching the disease. »