I would take this moment to point out that Pfizer, Moderna, BioNTech, AstraZeneca, and Janssen all use the same active ingredient: modified nucleoside mRNA to produce Sars-CoV-2 S protein.
I think Sinovac has more than one covid vax.
I would take this moment to point out that Pfizer, Moderna, BioNTech, AstraZeneca, and Janssen all use the same active ingredient: modified nucleoside mRNA to produce Sars-CoV-2 S protein.
I think Sinovac has more than one covid vax.
(post is archived)