Actually there has been animal testing of mRNA vaccines and so far so good:
Clinical study this year:
https://www.biorxiv.org/content/10.1101/2020.09.08.280818v1.full
Pfizer study press release from September:
https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-announce-data-preclinical-studies-mrna
"In non-human primates (NHPs), Sanofi said three dose levels had been evaluated with a similar two-dose approach.
“The preclinical results we report in this paper demonstrate the ability of MRT5500 to elicit a favorable immune response in both mice and non-human primates,” Ronald Renaud, Chief Executive of Translate Bio, said.
The vaccine candidate uses a technology known as messenger RNA (mRNA) which instructs cells in the body to make specific coronavirus proteins that then produce an immune response"
Actually there has been animal testing of mRNA vaccines and so far so good:
Clinical study this year:
https://www.biorxiv.org/content/10.1101/2020.09.08.280818v1.full
Pfizer study press release from September:
https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-announce-data-preclinical-studies-mrna
Additional testing as"proof of concept"
https://www.reuters.com/article/us-health-coronavirus-vaccines-sanofi/sanofi-reports-positive-animal-test-results-for-potential-covid-19-vaccine-idUSKBN2701OS
"In non-human primates (NHPs), Sanofi said three dose levels had been evaluated with a similar two-dose approach.
“The preclinical results we report in this paper demonstrate the ability of MRT5500 to elicit a favorable immune response in both mice and non-human primates,” Ronald Renaud, Chief Executive of Translate Bio, said.
The vaccine candidate uses a technology known as messenger RNA (mRNA) which instructs cells in the body to make specific coronavirus proteins that then produce an immune response"