Pathogen

A bacterium, virus, or other micro-organism that can cause disease.

How Vaccines Work
How vaccines were invented? Why vaccines are important? Find out more about the history of vaccines, how they work and more information on the topic.
How Vaccines Work
How vaccines were invented? Why vaccines are important? Find out more about the history of vaccines, how they work and more information on the topic.
Types of Vaccines
Glossary: Antigen
Glossary: Inactivated vaccine

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