Some more detail on the hospitalized people below:

"One vaccinated, hospitalized COVID-19 patient had received the Pfizer-BioNTech vaccine and three had received the Janssen vaccine."

"Four additional, fully vaccinated patients aged 20–70 years were also hospitalized, two of whom had underlying medical conditions."

Source: https://www.cdc.gov/mmwr/volumes/70/wr/mm7031e2.htm