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- Vaccines and immunization: What is vaccination?
Vaccines protect us throughout life and at different ages, from birth to childhood, as teenagers and into old age In most countries you will be given a vaccination card that tells you what vaccines you or your child have had and when the next vaccines or booster doses are due It is important to make sure that all these vaccines are up to date
- Vaccines and immunization - World Health Organization (WHO)
Vaccines reduce risks of getting a disease by working with your body’s natural defenses to build protection When you get a vaccine, your immune system responds We now have vaccines to prevent more than 30 life-threatening diseases and infections, helping people of all ages live longer, healthier lives
- How do vaccines work? - World Health Organization (WHO)
How vaccines help fight disease Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body Other vaccines contain weakened or reconstituted virus or bacteria as a whole Newer vaccines contain the blueprint for producing antigens (DNA or RNA) rather than the antigen itself
- A Brief History of Vaccination - World Health Organization (WHO)
Early experiments with influenza vaccines are carried out: the US Army Medical School tests 2 million doses in 1918, but results are inconclusive Read more about the history of Influenza vaccination In 1937 Max Theiler, Hugh Smith and Eugen Haagen develop the 17D vaccine against yellow fever The vaccine is approved in 1938 and over a million
- Coronavirus disease (COVID-19): Vaccines and vaccine safety
Protein-based vaccines: These contain harmless fragments of proteins or protein shells that mimic the COVID-19 virus to safely generate an immune response, Viral vector vaccines: These use a safe virus that cannot cause disease but serves as a vehicle to produce coronavirus proteins to generate an immune response, and
- COVID-19 vaccines - World Health Organization (WHO)
WHO has published the target product profiles for COVID-19 vaccines, which describes the preferred and minimally acceptable profiles for human vaccines for long term protection of persons at high ongoing risk of COVID-19, and for reactive use in outbreak settings with rapid onset of immunity
- The Oxford AstraZeneca (ChAdOx1-S [recombinant] vaccine) COVID-19 . . .
The Astra-Zeneca vaccine recommendations have also been modified to indicate that either of the mRNA COVID-19 vaccines (Pfizer or Moderna) can be used as a second dose following a first dose with the AstraZeneca vaccine dependant on product availability
- Vaccines WPRO - World Health Organization (WHO)
Vaccines are available to prevent more than 20 life-threatening diseases, helping people live longer, healthier lives They reduce risks of getting a disease by working with your body’s natural defenses to build protection When you get a vaccine, your immune system responds
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