Johnson and Johnson Covid-19 vaccine
Johnson and Johnson Covid-19 vaccine, also known as Janssen, a vaccine that aims to protect against Covid-19. The Johnson and Johnson Covid-19 vaccine is a Covid-19 vaccine that was developed by Janssen Vaccines in Leiden, Netherlands, and its Belgian parent company Janssen Pharmaceuticals, a subsidiary of American company Johnson and Johnson. It is a viral vector vaccine based on a human adenovirus that has been modified to contain the gene for making the spike protein of the SARS-CoV-2 virus that causes Covid-19. The body's immune system responds to this spike protein to produce antibodies. The vaccine requires only one dose and does not need to be stored frozen.
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