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- Vaccines and immunization: What is vaccination?
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 This is what makes vaccines so effective
- COVID-19 vaccines - World Health Organization (WHO)
Criteria for COVID-19 vaccine prioritization The proposed attributes and criteria provide considerations for the evaluation and prioritization of COVID-19 candidate vaccines to be considered for further development by WHO The target audience includes vaccine scientists, product developers, manufacturers, regulators and funding agencies
- How do vaccines work? - World Health Organization (WHO)
This article is part of a series of explainers on vaccine development and distribution Learn more about vaccines – from how they work and how they’re made to ensuring safety and equitable access – in WHO’s Vaccines Explained series
- Whats in a vaccine? - World Health Organization (WHO)
Live-attenuated vaccine A live-attenuated vaccine uses a living but weakened version of the virus or one that’s very similar The measles, mumps and rubella (MMR) vaccine and the chickenpox and shingles vaccine are examples of this type of vaccine This approach uses similar technology to the inactivated vaccine and can be manufactured at scale
- Coronavirus disease (COVID-19): Vaccines and vaccine safety
This page answers the most frequently asked questions about COVID-19 vaccines and vaccine safety If the information you are looking for is not here, check out our related links on the right-hand side of the page
- A Brief History of Vaccination
For centuries, humans have looked for ways to protect each other against deadly diseases From experiments and taking chances to a global vaccine roll-out in the midst of an unprecedented pandemic, immunization has a long history
- COVID-19 Vaccines Advice - World Health Organization (WHO)
Getting vaccinated: Specific advice Take whatever vaccine is made available to you, even if you have already had COVID-19 Hybrid immunity (protection from both vaccination and COVID-19 infection) enhances protection against severe disease of future COVID-19 infections and confers longer protection Revaccination approximately 12 months after the previous dose is particularly important for
- Know the facts - World Health Organization (WHO)
Vaccination is a simple, safe, and effective way of protecting people against harmful diseases, before they come into contact with them It uses your body’s natural defences to build resistance to specific infections and makes your immune system stronger
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