I wanted to simplify the example - getting whole virus vs getting just a spike.
Your quote from the study doesn't differentiate between part of mRNA (spike) in vaccine and mRNA of a whole virus. Also, it mensions RNA, not mRNA. Reading the whole article (and hundreds of others), it says that vaccines contain mRNA of part of virus (spike), not whole virus. People are sick after receiving the shots, because they their immune system recognize that spike protein is not a host element.
Also, I feel that overal outcome in article about mRNA vaccines is that they are very good and in many aspects better type of vaccines than traditional ones.
Interesting readings:
- https://www.dictionary.com/e/dna-vs-rna-vs-mrna-the-differences-are-vital/
- https://www.nebraskamed.com/COVID/where-mrna-vaccines-and-spike-proteins-go
Not an expert, just like reading stuff and checking facts (maybe someday we will have actual experts on Saidit :D )
[edit]
clarification