Vaccines and immunization: What is vaccination?
Oct 22, 2025 · 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 …
Vaccines and immunization - World Health Organization (WHO)
Dec 18, 2025 · 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 …
COVID-19 vaccines - World Health Organization (WHO)
Read WHO’s Global COVID-19 Vaccination Strategy outlining the steps to achieve effective and equitable distribution of vaccines. See WHO’s landscape of COVID-19 vaccine candidates for the …
Vaccins et vaccination : qu’est-ce que la vaccination
La vaccination est un moyen simple, sûr et efficace de se protéger des maladies dangereuses avant même d’y être exposé. Elle met à profit les défenses naturelles de l’organisme pour développer une …
COVID-19 Vaccines Advice
Oct 8, 2024 · Vaccination should not be delayed in anticipation of newer versions of the COVID-19 vaccine. Currently approved COVID-19 vaccines, including those based on the index virus and the …
How do vaccines work? - World Health Organization (WHO)
Feb 25, 2025 · Vaccination eases the strain on families and healthcare systems by reducing hospital visits and medical costs. Healthy children can attend school regularly, learn better and grow up ready …
Vaccines and immunization: Vaccine safety
Jul 15, 2025 · Vaccination is one of the most effective ways to prevent diseases. Over the past 50 years, essential vaccines against just 14 diseases have saved at least 154 million lives (1). During the same …
Vaccine efficacy, effectiveness and protection
Mar 10, 2025 · Following the recommended vaccination schedule is essential effective and sustained protection. Boosters Protection from the initial dose or primary series may weaken over time. Booster …
Know the facts - World Health Organization (WHO)
Mar 20, 2020 · 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 …
关于疫苗的问答 - World Health Organization (WHO)
没有疫苗，我们就会面临麻疹、脑膜炎、肺炎、破伤风和脊灰等疾病导致的严重病症和残疾风险。这些疾病中有许多会危及生命。据世卫组织估计，仅儿童疫苗每年就可挽救超过400万人的生命。 尽管一些 …