Downsides are that it may be somewhat hard to find, and going forward in future years it won't be updated as often to better protect against new variants as the mRNA vaccines.
If you're comfortable with the flu vaccine, or palliative pre-treatment or whatever you want to call it, you should be comfortable with the Novavax vaccine. It's an easier way to retain immunity than getting infected repeatedly without vaccination, and at your age, like the flu vaccine, it probably makes a lot of sense.
I would hope that Big Pharma has been working on a true vaccine with a higher level of efficacy. We now have time to "git-er-dun right" in terms of creating a safe and effective preventative vaccine using the long game research protocols the medical community has succesfully employed in the past. Originally Posted by ICU 812Pharmaceutical companies are looking for a broad spectrum coronavirus vaccine, that, in addition to COVID-19, would work for SARS, MERS, and some strains of the common cold. But I'd guess the chance they'll come up with a COVID-19 vaccine that has a higher level of efficacy than the Pfizer and Moderna vaccines back in early 2021 (90% to 95%) is low.