Des Moines Register: Iowans will no longer be able to use a state website to check their own vaccination histories or those of their children. The change comes amid national controversy over whether employers should be able to require workers to receive coronavirus shots and a state law banning use or government issuance of "vaccine passports." The Iowa Department of Public Health is limiting public access to the website, partly because of concerns that employers could surreptitiously use it to see if their workers have been vaccinated, department spokeswoman Sarah Ekstrand said.