Video message from WHO Director-General Dr Tedros on WHO’s Global Advisory Committee on Vaccine Safety marking its 20th anniversary. Vaccine safety means monitoring vaccines at every stage of the process, in research & development, production, delivery, and follow-up.
In This Story: Vaccine
A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.