The Iowa Department of Public Health reported 574,835 vaccinations for the coronavirus had been administered as of 11 a.m. Saturday.The state also recorded 494 new COVID-19 cases statewide for the 24-hour period as of 11 a.m. Saturday. No new deaths were listed on the department’s website and as analyzed by The GazetteNew casesLinn County recorded 18 new cases of COVID-19, and Johnson County listed 22.Sixty-two additional cases were listed for children under the age of 18 statewide.The top 10 counties in total positive cases as of 11 a.m.