I dunno why USAA says there’s no data. We have some but
“National surveillance relies on passive and voluntary reporting, and data are not complete or representative. These surveillance data are a snapshot and help identify patterns and look for signals among vaccine breakthrough cases.”
https://www.cdc.gov/vaccines/covid-19/health-departments/breakthrough-cases.html
I did find some data from South Carolina, tho:
fully vaccinated breakthrough rate 0.5314%
fully vaccinated breakthrough hospitalization rate: 0.0473%
fully vaccinated death rate: 0.0133%
heres the reporting form for use by states
here’s the blah blah blah 10page protocol that goes along with it
Not looking too good for the vaccine. From your link:
SC:
Breakthrough cases:
Hospitalizations of the breakthrough cases: 1016/11879 = 8.55%
Deaths of breakthrough cases: 298/11879 = 2.51%
https://scdhec.gov/covid19/covid-19-data/breakthrough-cases-tracking-disease-infection-after-vaccination
All cases:
Hospitalizations of all cases: 29,117/860,369 = 3.38%
Deaths of all cases: 12,570/860,369 = 1.46%
https://scdhec.gov/covid19/covid-19-data/south-carolina-county-level-data-covid-19