Try reading actual facts...which you probably are too ignorant to understand.
https://www.cdc.gov/mmwr/volumes/70/wr/mm7037a7.htm?s_cid=mm7037a7_w
At least I am intelligent enough to understand the clearly written and illustrated article that I posted. Unfortunately, I am not capable of understanding the gobbledygook in the CDC report you linked to. Perhaps you are brilliant enough to summarize the typical paragraph below from the CDC report for me.
First, although limiting the analysis period to after universal adult vaccine eligibility and age stratification likely helped to reduce biases, residual differences between fully vaccinated and unvaccinated groups have the potential to reduce estimated VE. Second, the analysis excluded partially vaccinated persons, to robustly assess VE for fully vaccinated compared with that of unvaccinated persons. A supplementary sensitivity analysis that included partially vaccinated persons as unvaccinated yielded conservative VE for laboratory-confirmed infection (declining from 89.0% to 71.4%) and for hospitalizations (ranging from 87.7% to 93.6%). Third, exact algorithms were used to link databases; some persons were possibly not linked because matching variables were entered differently in the respective systems. Fourth, this study did not estimate VE by vaccine product, and persons were categorized fully vaccinated at 14 days after final dose, per CDC definitions; however, the Janssen vaccine might have higher efficacy at 28 days.*** Given that Janssen vaccine recipients accounted for 9% of fully vaccinated persons and the observed time period from full vaccination to infection (median 77 days), this would minimally affect the findings. Fifth, information on reasons for testing and hospitalization, including symptoms, was limited. However, a supplementary analysis found that among 1,285 fully vaccinated adults and 7,288 unvaccinated adults, 553 (43.0%) and 4,231 (58.1%), respectively, were reported to have been admitted for COVID-19 by hospital staff members using nonstandardized definitions. A sensitivity analysis of hospitalization VE limited to those admitted for COVID-19, found similar results (VE range = 92.5%–96.8%), suggesting that the extent of bias was limited. Finally, data were too sparse to reliably estimate VE for COVID-19-related deaths.
These findings support the implementation of multicomponent approach to controlling the pandemic, centered on vaccination, as well as other prevention strategies such as masking and physical distancing.
At least I am not so ignorant as to waste my time reading lengthy and poorly written CDC reports as you apparently do.
Facts and the CDC is laughable.
Try reading actual facts...which you probably are too ignorant to understand.
If YOU believe anything from the CDC, YOU are stupid.