The definition of the word "vaccine" was literally changed during the pandemic so the mRNA injections could fit in : https://www.merriam-webster.com/wordplay/word-of-the-year-20...

Some people don't agree they should be called "vaccine", in the traditional sense.

Here's a better source, with video:

https://x.com/coenvermeeren/status/1537751313932599296

There's also a "Fact Check" article from Routers that says it is a "false allegation that COVID-19 mRNA vaccines are a form of gene therapy":

https://www.reuters.com/article/fact-check/bayer-executives-...

But the same article has the following quote from the above video, from Bayer's executive Stefan Oelrich:

> “Ultimately the mRNA vaccines are an example for that cell and gene therapy. I always like to say, if we had surveyed two years ago in the public, ‘would you be willing to take gene or cell therapy and inject it into your body?,’ we would have probably had a 95% refusal rate. I think this pandemic has also opened many people’s eyes to innovation in the way that was maybe not possible before.”

So it seems Bayer (or at least, Stefan Oelrich from Bayer), indeed classifies the mRNA vaccines as gene therapy.

Fact checks are basically validation of the conspiracy theory by now.