Colorado Defies Federal Vaccine Guidance

In Denver, Colorado, lawmakers passed a bill allowing the state to prioritize vaccine recommendations from medical groups over federal guidance. The move comes after changes to the CDC’s immunization schedule raised concerns about eroding public trust. Democratic Governor Jared Polis signed the bill in March, insulating the state from what officials call “dysfunction” in Washington.

Colorado Chooses Vaccines, a coalition of doctors, scientists, and advocates, formed last September to reinforce the benefits of vaccination. Members share personal stories—like former Denver City Council member Carol Boigon’s experience with polio in 1950s Detroit—to educate new generations. The state also joined the WHO’s Global Outbreak Alert and Response Network independently after the U.S. withdrew.

Though Colorado recorded 22 measles cases by mid-May—surpassing recent years’ totals—kindergarten vaccination rates for measles remain at roughly 88% statewide. The new law also expands pharmacists’ ability to administer vaccines and offers them legal protections. Opponents worry the law interferes with parental choice, and the long-term impact on vaccination rates remains unclear.