How bad is healthy vaccinee bias in observational data?

A little-noticed but crucial 2022 Hungarian study suggests it's bad enough that all the CDC's papers on Covid jab effectiveness are garbage. The 2022 paper also has more bad news for the mRNAs.

The most important open secret in public health is three words: healthy vaccinee effect.

Scientists have noticed the phenomenon with flu shots for decades.

Adults who get vaccinated are generally healthier and have better medical care than the unjabbed. Also, doctors often withhold vaccines from terminally ill people. Even a 2011 study of flu shots in hos…