Inactivated virus uses the whole virus.
mRNA uses only the spike protein.
The new South African virus, Omicron, have a mutated spike protein.
Good Luck to those vaccinated with Pfizer and Moderna.
The 50 mutations on the new B.1.1.529 variant, named Omicron by the World Health Organization, include more than 30 on the spike protein, the exposed part of the virus that binds with human cells.
South African scientist Tulio de Oliveira said at a media briefing Thursday that the omicron variant contains around
50 mutations but more than 30 of these are in the spike protein, the region of the protein that interacts with human cells prior to cell entry.
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