Here are some guidelines for reaching people with disabilities
Design for cognitive and visual impairment needs. Follow baseline Web Content Accessibility Guidelines and ensure ADA compliance in all online communication. Ensure screen readers and other assistive technologies are supported in the design.
Highlight accessible accommodations. Clearly highlighting accessibility accommodations at vaccine provider locations will help alleviate any fear of not being able to get to a vaccine appointment. Consider representing this accessibility (ramp access, etc) in imagery.