BNT162b2 (Comirnaty)

BNT162b2, commonly known as Comirnaty or the Pfizer-BioNTech COVID-19 vaccine, is an mRNA vaccine designed to protect against COVID-19. It works by delivering a small piece of genetic material that instructs cells to produce a protein similar to the virus's spike protein. This prompts the immune system to recognize the protein and develop defense mechanisms, such as antibodies, to fight the actual virus if encountered later. The vaccine has been shown to be effective in preventing COVID-19 illness and is administered in two doses. It has played a key role in controlling the spread of the virus worldwide.