Some states could vaccinate their seniors twice as fast as others, CNN analysis finds From CNN's Deidre McPhillips Some states could fully vaccinate their 65-and-older population within two months, but it could take more than twice as long for others, a CNN analysis found. If individuals age 65 and older were the only people being vaccinated, Alaska could fully vaccinate its seniors – with both shots of the two-dose regimen – within 43 days. In Iowa, Hawaii, Idaho and Florida, it could take more than 130 days, or more than four months. The analysis considered the total senior population in each state, along with the average pace of vaccine administration over the past seven days, according to data from the US Centers for Disease Control and Prevention.