What’s in a vaccine?
When autocomplete results are available use up and down arrows to review and enter to select. Vaccines are made up of carefully selected components that work together to protect against disease. Each vaccine component serves a specific purpose, and each ingredient is tested in the manufacturing process. All ingredients are rigorously tested for safety. Vaccines contain antigens or the blueprint for making the antigens. An antigen generates an immune response and may be a small part of the disease-causing
