Science Source Stock Photo - Pfizer-BioNTech Covid-19 vaccine

Pfizer-BioNTech Covid-19 vaccine

Description: Syringe being filled from a phial of Pfizer-BioNTech BNT162b2 Covid-19 vaccine. The vaccine consists of strands of mRNA (messenger ribonucleic acid) encased in lipid nanoparticles. The mRNA codes for a mutated version of the viral spike protein found on the surface of the SARS-CoV-2 coronavirus that causes Covid-19. When injected into the body the mRNA is taken up by the body's cells, which manufacture copies of the protein. The proteins stimulate an immune response, causing the body to produce antibodies against the spike protein. This means that the body is primed to attack the virus should it be encountered after vaccination, preventing disease. Photographed in Bogota, Colombia, on 18th February 2021.

Credit:

Chepa Beltran/VWPics/Science Source

Unique identifier: SS1164887

Type: Image

Size: 5500px × 3660px (~57 MB)

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