Pfizer, Moderna, Coronavac, Sputnik V, AstraZeneca? Learn the Difference Between the Vaccines

And which countries are using each of them?

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Photo by CDC on Unsplash

BNT162b2 — Developed by BioNTech, Fosun Pharma, and Pfizer

Used technology: mRNA. The BNT162b2, also known as Pfizer Vaccine, is an RNA vaccine. That means it uses messenger RNAs (mRNA).

AZD1222 — Developed by the University of Oxford and AstraZeneca

Used technology: Modified chimpanzee adenovirus vector. That means the vaccine, also known as Oxford Vaccine, uses a virus originated from monkeys that have the same spike protein from the COVID-19 virus. But since this virus does not replicate in humans, it does not cause infections, only stimulating the immune response.

Sputnik V (Gam-COVID-Vac) — Developed by the Gamaleya Research Institute

Used technology: Replicating viral (adenovirus) vector. The Sputnik V uses the adenovirus (which causes the common cold) fused with the spike protein of the SARS-CoV-2 to stimulate an immune response. It is a very similar method to the one used by the Oxford vaccine, mentioned above. That similarity resulted in rumors that the Sputnik V was developed after hackers steal the AstraZeneca formula.

mRNA-1273 — Developed by Moderna, NIAID, and BARDA

Used technology: mRNA. The same technology used by the Pfizer vaccine.

CoronaVac — Developed by Sinovac

Used technology: Inactivated SARS-CoV-2. This (inactivated virus) is the most common technology for vaccine production.

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