how is a vaccine produced
Answers
Explanation:
Vaccines are made up of whole bacteria or virus, or parts of them, often a protein or sugar. These active components of the vaccine, called antigens, are what trigger an immune response when in the body. Since vaccines are biological products, most conventional viral vaccines need to be grown on biological material, such as chicken eggs with influenza vaccines, mammalian cells with hepatitis A vaccines, or yeast for hepatitis B vaccines. The process is fairly laborious and slow. With flu vaccines, for example, the live virus is injected into an embryonated egg, and then once the virus has replicated, the viral material is collected, purified and inactivated. Newer RNA vaccines can be produced from a DNA template; this can be much cheaper and faster than conventional vaccine production.
Production of Vaccine
Explanation:
- All vaccines contain an active component which is called the Antigen.
- Antigen generates an immune response, or the blueprint for making the active component.
- The antigen in the vaccine may be a small part of the disease-causing organism such as a protein or sugar, or it may be the whole organism in a weakened or inactive form.
- Each vaccine first undergo screenings and evaluations to determine which antigen should be used to invoke an immune response.