Vaccine - Wikipedia
WebA vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. The safety and effectiveness of vaccines has been widely studied and verified.
Vaccine | Definition, Types, History, & Facts | Britannica
WebMay 13, 2024 · Vaccine, suspension of weakened or killed microorganisms or toxins or other biological preparation, such as those consisting of antibodies, lymphocytes, or mRNA, that is administered to prevent disease. Vaccines work by stimulating the immune system to attack specific harmful agents.
Vaccines and immunization: What is vaccination?
WebApr 23, 2024 · The vaccine is therefore a safe and clever way to produce an immune response in the body, without causing illness. Our immune systems are designed to remember. Once exposed to one or more doses of a vaccine, we typically remain protected against a disease for years, decades or even a lifetime.
COVID-19 vaccines - World Health Organization (WHO)
WebSee WHO’s landscape of COVID-19 vaccine candidates for the latest information on vaccines in clinical and pre-clinical development. WHO’s COVID-19 dashboard also features the number of vaccine doses administered globally, with more detail provided on the dedicated COVID-19 vaccination dashboard.
Vaccines and immunization - World Health Organization (WHO)
Web5 days ago · Vaccines reduce risks of getting a disease by working with your body’s natural defences to build protection. When you get a vaccine, your immune system responds. We now have vaccines to prevent more than 20 life-threatening diseases, helping people of all ages live longer, healthier lives.
Vaccines for COVID-19 | CDC
WebApr 23, 2024 · Learn about COVID-19 vaccine planning, how vaccine recommendations will be made, and the work going into ensuring the safety of COVID-19 vaccines. COVID-19 vaccines protect against COVID-19. Get safety info and more.
Get the facts about COVID-19 vaccines - Mayo Clinic
WebMay 1, 2024 · By Mayo Clinic Staff. 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.
Vaccines - Johns Hopkins Coronavirus Resource Center
WebWith dozens of COVID-19 vaccines now in clinical trials, it is important to understand the accelerated timelines for development, the different types of vaccines available, and the facts related to vaccine safety and efficacy. Additionally, as vaccines are approved, we will track data on vaccination efforts.
About COVID-19 Vaccines | CDC
WebSep 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.
Vaccines.gov - Find COVID‑19 vaccine locations near you
WebKey Details about Vaccines and Boosters. Stay up to date on COVID‑19 vaccines for the best protection against new variants. Visit CDC’s COVID‑19 Vaccines resources to get the latest recommendations. You can use Vaccines.gov to find COVID‑19 vaccines near you.
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