Vaccines 101: How vaccines work

As the world waits for a potential COVID-19 vaccine, we delve into how vaccines actually work. What are the different types of vaccine? How do they trigger and train the immune system, and what is the role of herd immunity? Read more in https://www.nature.com/collections/vaccines-milestone This Nature Video is editorially independent. It is produced with third party financial support. Read more about Supported Content here: https://partnerships.nature.com/commercial-content-at-nature-research/ Sign up for the Nature Briefing: An essential round-up of science news, opinion and analysis, free in your inbox every weekday: https://go.nature.com/371OcVF