To add to this, there has been evidence that the spike proteins created by the mRNA sequences stay around in the body longer than expected. CDC has now implicitly admitted this.

CDC snapshot July 22: https://web.archive.org/web/20220722141942/https://www.cdc.g...

CDC snapshot July 23: https://web.archive.org/web/20220723161304/https://www.cdc.g...

Notice the change to the "Facts About mRNA COVID-19 Vaccines" section.