U.S. Centers for Disease Control and Prevention. Data collected from May to June 2021 shows that as more adults ages 65 and older are getting COVID-19 vaccines, the older demographic now account for fewer than 1 in 3 hospitalizations in the U.S. "However, data from recent weeks show that even though the number of COVID-19-associated hospitalizations continues to decline in all age groups, the proportion of hospitalized adults ages 18–49 years continues to climb," according to the CDC.
Currently, CDC data shows nearly 80% of adults ages 65 and older have been fully vaccinated against the COVID-19 virus while 57.1% of people ages 12 and older have been fully vaccinated and 59.6% of adults 18 and older.