That's actually untrue, only the Chinese vaccines are traditional vaccines like the one we use for flu (inactivated vaccines).
The Oxford one is an adaptation of the one they were working on to treat MERS in Saudi Arabia.
You can see the different types of vaccine here:
https://www.vaccines.gov/basics/types
As you can see the viral vector vaccines like the Oxford one and Sputnik 5 and messenger RNA vaccines like the Pfizer and Moderna ones have only been used on a wide scale to treat Covid.




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