![]() There is no gelatin, chicken protein or antibiotics in the mRNA vaccines made by Pfizer/BioNTech and Moderna or in the vector vaccines made by AstraZeneca and Janssen. Package leaflets for the COVID-19 vaccines 25 Full results from Nuvaxovids pivotal phase III trial were published in December 2021. In response, the immune system starts producing antibodies.Ī s used for the basic series of COVID-19 vaccinationsĪ s used for the repeat vaccination against COVID-19 vaccinations The Novavax COVID-19 vaccine, sold under the brand names Nuvaxovid and Covovax, 1 among others, is a subunit COVID-19 vaccine developed by Novavax and the Coalition for Epidemic Preparedness Innovations (CEPI). If the body encounters the SARS-COV-2 virus, the immune system recognises the spike proteins on the virus. After vaccination, the body responds by producing antibodies against the spike protein. It also contains an adjuvant: a substance that intensifies the body’s immune response to the protein. The vaccine contains very small particles of spike protein, which have been produced in a laboratory. The Novavax vaccine is a protein subunit vaccine.The immune system reacts by producing antibodies, just as it does in response to the mRNA vaccines. The vector vaccine contains an inactivated cold virus (that cannot replicate) with an instruction (code) that tells your cells to make spike proteins. The COVID-19 vaccine made by Janssen is a vector vaccine.The immune system recognises the spike proteins as foreign substances and starts making antibodies. ![]() These are the spiky protrusions on the exterior of the coronavirus. ![]() These RNA vaccines contain a protective envelope of lipids (fat) with an instruction (code) that tells your cells to make spike proteins. The COVID-19 vaccines made by Pfizer/BioNTech and by Moderna are mRNA vaccines.Read more about these vaccines on Types of COVID-19 vaccines Additional information is available on the CDPH COVID-19 Booster website. ![]()
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