The scramble is on, with over 150 different efforts against the coronavirus in development. Robert Cyran explains some of the big questions around them – such as when a vaccine will be available, potential manufacturing problems, and how to ensure people get one.
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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.