Almost 263,800 individuals in Iowa have received complete doses of a COVID-19 vaccine as of 11 a.m. Saturday.A total of 864,749 individual doses have been administered, according to Iowa Department of Public Health data and as analyzed by The Gazette.Three additional deaths related to coronavirus were confirmed on Saturday, for a total of 5,552 since March of this past year.New casesThe state public health department recorded 538 new cases of COVID-19 in the 24-hour period ending at 11 a.m.