A new mRNA flu vaccine showed a 27% reduction in flu cases in a clinical trial, but its path to FDA approval faced an early regulatory setback.
https://www.foxnews.com/health/fda-approves-first-ever-mrna-flu-vaccine-millions-older-americans
https://www.foxnews.com/health/fda-approves-first-ever-mrna-flu-vaccine-millions-older-americans