An effort by Arizona lawmakers to ban state and local governments from mandating COVID-19 “vaccine passports” failed earlier this week. The measure, House Bill 2190, was introduced in mid-April and sought to prohibit business entities from requiring a person to provide proof of vaccination. “A business entity doing business in this state [Arizona] may not require a person to disclose to the business entity or a third-party online application whether the person has or has not received a covid-19 vaccine or a vaccine to address any variant of covid-19 as a condition for receiving any service, product or admission to an event or venue,” according to its text (pdf). The legislation would have also prevented public universities in Arizona, as well as county, local, and state governments from requiring people to provide proof of vaccination. Healthcare professionals would have been allowed to require proof of vaccination, but they would be prohibited …