A USA TODAY analysis finds that while most cases prior to late May were people 45 and older, most new cases since then are among younger people.
Younger people are a factor in surge of COVID-19 cases, analysis shows
More Stories
Brazil rolls out COVID-19 vaccination plan
First Pfizer COVID-19 vaccine shipments to be delivered to US distribution sites starting Monday
CDC advisory panel recommends Covid-19 vaccine for people 16 and over