The CDC is reporting 33,662,534 cases, those were people who volunteered to be tested or were admitted to the hospital, etc.. As a pandemic wanes less testing is done. Yes, using all immunized people “as the denominator” is misleading (to some), but the number of breakthrough cases verses the claimed efficacy of 95% is so small (0.0000118%) there is little doubt of the 95% claim holding up....there are always going to be “immunocompromised” individuals that vaccines are less effective on.
I assume you realize that data from a drug trial is almost always more favorable than the in the field data and that is why actual in the field data is so important. All trial participants are carefully “selected” by the trial sponsor.
But, we did get the six month follow up of the Moderna Cove 3 trial. In the original trial they reported that 11 of the vaccinated group got covid and stated 94.5% efficacy which again was based on the fact that very few people in either group, vax or control, contracted covid.
“Moderna’s latest analysis of its vaccine clinical trial data shows 900 people got COVID-19 after being vaccinated, consistent with 90% or more efficacy for the vaccine, company spokesperson Colleen Hussey said.”
“The company shared an update on the Phase 3 COVE study of the Moderna COVID-19 Vaccine. An updated review of adjudicated cases has identified over 900 cases of COVID-19 in the COVE study as of April 9th, including over 100 cases of severe COVID-19, as defined in the protocol, with a median follow-up of approximately 6 months post dose 2, it said.”
The following is a great explanation of what the vaccine manufacturer’s data really mean.
https://www.youtube.com/watch?v=e2Ue85EV2Us