Iowa added 152 new COVID-19 cases on Monday.The new cases bring the state total to 353,394. The state’s seven-day average is 523, according to Iowa Department of Public Health data.VACCINATIONSAs of Monday, the number of fully-vaccinated Iowans was 639,807, according to IDPH data. The number is equal to 20.28 percent of all Iowans.