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Bookmark or Share- Vaccines and immunization: What is vaccination?Vaccine ingredients can look unfamiliar when they are listed on a label. However, many of the components used in vaccines occur naturally in the body, in the environment, and in the foods we eat. All of the ingredients in vaccines – as well as the vaccines themselves - are thoroughly tested and monitored to ensure they are safe.
- Vaccines and immunization - World Health Organization (WHO)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. Immunization currently prevents 3.5 million to 5 million deaths every year from diseases like diphtheria, tetanus, pertussis, influenza and measles.
- COVID-19 Vaccines Advice - World Health Organization (WHO)Unprecedented scientific collaborations, extensive prior research and substantial public funding enabled swift COVID-19 vaccine development to be completed in record time – while maintaining high safety standards. New versions of the vaccine are being developed as the COVID-19 virus continues to circulate and change.
- Vaccine efficacy, effectiveness and protectionVaccine effectiveness is a measure of how well vaccines work in the real world. Clinical trials include a wide range of people – a broad age range, both sexes, different ethnicities and those with known medical conditions – but they cannot be a perfect representation of the whole population.
- How do vaccines work? - World Health Organization (WHO)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.
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