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Why vaccination is important and the safest way to protect yourself. Vaccines are the most effective way to prevent many infectious diseases. This page explains how vaccines work, what they contain and the most common side effects.
- Vaccine Efficacy and Effectiveness
- Vaccine Protection and Timing
- Vaccine Protection and Infection
- Vaccine Protection and Transmission
- Vaccine Protection and Variants
All COVID-19 vaccines approvedby WHO foremergency use listinghave been through randomized clinical trials to test their quality, safety and efficacy. To be approved, vaccines are required to have a high efficacy rate of 50% or above. After approval, they continue to be monitoredfor ongoing safety and effectiveness. But what is the difference betwee...
Vaccines offer strong protection, but that protection takes time to build. People must take all the required doses of a vaccine to build full immunity. For two-dose vaccines, vaccines only give partial protection after the first dose, and the second dose increases that protection. It takes time before protection reaches its maximum level a few week...
Vaccines can stop most people from getting sick with COVID-19, but not everyone. Even after someone takes all of the recommended doses and waits a few weeks for immunity to build up, there is still a chance that they can get infected. Vaccines do not provide full (100%) protection, so ‘breakthrough infections’ – where people get the virus, despite ...
COVID-19 vaccines are crucial tools in the pandemic response and protect against severe disease and death. Vaccines provide at least some protection from infection and transmission, but not as much as the protection they provide against serious illness and death. More evidence is needed to determine exactly how well they stop infection and transmis...
When cases increase and transmission accelerates, it’s more likely that new dangerous and more transmissible variantsemerge, which can spread more easily or cause more severe illness. Based on what we know so far, vaccines are proving effective against existing variants, especially at preventing severe disease, hospitalization and death. However, s...
Vaccination is a simple, safe, and effective way of protecting you against harmful diseases, before you come into contact with them. It uses your body’s natural defenses to build resistance to specific infections and makes your immune system stronger.
Aug 25, 2022 · Safe: you are protected from abuse and avoidable harm. Are they effective? Effective : your care, treatment and support achieves good outcomes, helps you to maintain quality of life and is based on the best available evidence.
Mar 30, 2020 · WHO works to ensure that everyone, everywhere, is protected by safe and effective vaccines. To do this, WHO helps countries set up rigorous safety systems for vaccines – alongside other medicines - and work to develop the strictest standards for their regulation.
Safeguarding means protecting people's health, wellbeing and human rights, and enabling them to live free from harm, abuse and neglect. It's fundamental to high-quality health and social care.
Mar 4, 2015 · Medicines optimisation is defined as 'a person‑centred approach to safe and effective medicines use, to ensure people obtain the best possible outcomes from their medicines. Medicines optimisation applies to people who may or may not take their medicines effectively.