“The first part of your statement is false: “...not a vaccine by any pre-2020 definition.” mRNA vaccines have been studied for other diseases in the past “
Those experiments were without any level of success: All the test animals died and no vaccine properties were created. They did not get the mRNA gene therapy to produce a vaccine type response.
So, Travis, is still right.
No, he’s not right. He stated that mRNA vaccines were not vaccines prior to 2020. That’s completely wrong. Also, your statement that “all the test animals died and no vaccine properties were created” is completely false. A quick Google search would have shown you that your statement wasn’t true. Here’s one of many such examples: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5546158/