This is likely a bit above your comprehension level, but take a look at the statement from CDC Director Rochelle P. Walensky in July. In the statement she mentions vaccinated people transmitting the virus to others repeatedly.
https://www.cdc.gov/media/releases/2021/s0730-mmwr-covid-19.html
In the second paragraph we have:
“The masking recommendation was updated to ensure the vaccinated public would not unknowingly transmit virus to others.”
fireman15 wrote: “This is likely a bit above your comprehension level, but take a look at the statement from CDC Director Rochelle P. Walensky in July. In the statement she mentions vaccinated people transmitting the virus to others repeatedly.”
So, according to your vast medical experience a vaccine must be 100% effective in preventing illnesses? If 100% effectiveness is the standard, then there are no vaccines since no vaccine is 100% effective.