Yahoo Web Search

Search results

  1. Dictionary
    Vac·cine
    /vakˈsēn/

    noun

    • 1. a substance used to stimulate the production of antibodies and provide immunity against one or several diseases, prepared from the causative agent of a disease, its products, or a synthetic substitute, treated to act as an antigen without inducing the disease: "every year the flu vaccine is modified to deal with new strains of the virus"
  2. Jul 21, 2020 · Vaccines are products that help the immune system combat invading disease-causing pathogens. They are a safe and effective method for preventing certain diseases. This article outlines what ...

  3. COVID-19 vaccines. Everyone, everywhere, should have access to COVID-19 vaccines. Major progress has been made with the COVID-19 vaccination response, and it is critical to continue the progress, particularly for those most at risk of disease. WHO recommends a simplified single-dose regime for primary immunization for most COVID-19 vaccines ...

  4. Dec 8, 2020 · Regardless of whether the vaccine is made up of the antigen itself or the blueprint so that the body will produce the antigen, this weakened version will not cause the disease in the person receiving the vaccine, but it will prompt their immune system to respond much as it would have on its first reaction to the actual pathogen. Some vaccines ...

  5. 5 days ago · As the coronavirus disease 2019 (COVID-19) continues to cause illness, you might have questions about COVID-19 vaccines. Find out about the different types of COVID-19 vaccines, how they work, the possible side effects, and the benefits for you and your family.

  6. The COVID-19 vaccine lessens the severity of COVID-19 by teaching the immune system to recognize and fight the virus that causes the disease. For fall/winter 2023–2024, the updated COVID-19 vaccine is based on the XBB.1.5 variant. The updated vaccine is made by Pfizer-BioNTech, Moderna and Novavax.

  7. Sep 25, 2023 · Learn the benefits of getting a COVID-19 vaccine, key facts and data about the vaccines, and find answers to frequently asked questions. COVID-19 vaccines protect against COVID-19. Get safety info and more.

  8. Sep 22, 2023 · Getting a COVID-19 vaccine is a safer, more reliable way to build protection than getting sick with COVID-19. COVID-19 vaccination helps protect people by creating an immune response without the potentially severe illness or post-COVID conditions that can be associated with COVID-19 infection.

  1. People also search for