Axios Des Moines: Starting today, Polk County’s 1,400 employees must show proof of COVID-19 vaccination or submit to weekly testing. Those who refuse both options will be considered insubordinate and face termination, county administrator John Norris said. It’s still too early to determine whether there might be an employee exodus linked with the new policy approved by county supervisors this month, he said. Iowa law bans COVID-19 vaccine passports, but it doesn’t restrict businesses or governments from requiring that employees get vaccinated. Des Moines’ government is reviewing a track-and-verify vaccination system and could implement its own requirements in coming weeks, spokesman Al Setka said.