How will I know if others are vaccinated without compromising their personal health information?

Every Coloradan’s immunization records are confidential, personal medical information that will never be shared publicly. The state will report information on the total number of residents who have been vaccinated in Colorado, but this data will not be attached to any individual’s personally identifying information.

The state health department maintains the Colorado Immunization Information System (CIIS), a confidential, population-based, secure computerized system that collects and consolidates individual-level vaccine and exemption data for Coloradans of all ages from a variety of sources. Under Colorado law, you can choose to remove your immunization information from CIIS at any time. This is called an opt-out.

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