It is referenced very clearly in the study. Also from the CDC: "COVID-19 vaccines are effective at preventing infection, serious illness, and death" https://ww

It is referenced very clearly in the study. Also from the CDC: "COVID-19 vaccines are effective at preventing infection, serious illness, and death" https://www.cdc.gov/coronavirus/2019-ncov/vaccines/effectiveness/why-measure-effectiveness/breakthrough-cases.html https://www.cdc.gov/coronavirus/2019-ncov/vaccines/effective... I understand there is a lot of disinformation out there, but simple facts like this should be universally known.