Unvaccinated adolescents were ten times more likely to be hospitalized for COVID-19 than fully vaccinated ones as the delta variant surged in the U.S., according to a new report from the CDC. The study looked at hospital data from 14 different states between June 20 and July 31 … During that time, the number of unvaccinated kids aged 12 to 17 who were hospitalized with COVID-19 was 10.1 times higher than those who were fully vaccinated.