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originally posted by: nemonimity
a reply to: Dfairlite
They are very different. One is a modified virus your body fights off and the other is genetic material that alters your muscle cells for your body to fight.
Understanding Viral Vector COVID-19 Vaccines | CDC
First, the vector (not the virus that causes COVID-19, but a different, harmless virus) will enter a cell in our body and then use the cell’s machinery to produce a harmless piece of the virus that causes COVID-19. This piece is known as a spike protein and it is only found on the surface of the virus that causes COVID-19.
Next, the cell displays the spike protein on its surface, and our immune system recognizes it doesn’t belong there. This triggers our immune system to begin producing antibodies and activating other immune cells to fight off what it thinks is an infection.
How do viral vector vaccines work?
Scientists began creating viral vectors more than 40 years ago. Viral vector vaccines use a modified version of a virus (a vector) to deliver genetic instructions to the body’s cells.The cells then produce harmless pieces of the virus called antigens which trigger an immune response in the body.