The CDC has now quietly removed its promise that your body “breaks down and gets rid of the mRNA soon after it is finished” with initially making spike protein.
(Original CDC language on the Wayback Machine here; current CDC position, as of July 15, here)
Meanwhile, scientists keep piling up evidence that the spike protein remains in the body for months, at least, and is far from benign.
The most recent finding comes from Japanese physicians reporting on a 64-year-old who developed persistent and painful skin lesions days after receiving the Pfizer/BioNTech mRNA vaccine.