How long do mRNA and spike proteins last in the body?

https://www.nebraskamed.com/COVID/where-mrna-vaccines-and-spike-proteins-go

The spike protein in the vaccine is not exactly the same as COVID-19 spike protein...

https://www.youtube.com/watch?v=nEZ8QSAiFp0&t=109s

https://www.factcheck.org/2021/07/scicheck-covid-19-vaccine-generated-spike-protein-is-safe-contrary-to-viral-claims/

https://fullfact.org/online/conservative-woman-vaccine-scientist-spike-protein/

https://www.salk.edu/news-release/the-novel-coronavirus-spike-protein-plays-additional-key-role-in-illness/

https://health-desk.org/articles/what-do-we-know-about-the-toxicity-of-spike-proteins-made-from-covid-19-vaccines

https://www.reuters.com/article/factcheck-vaccine-safe/fact-check-no-evidence-spike-proteins-from-covid-19-vaccines-are-toxic-idUSL2N2NX1J6