How Do Vaccines Work?

Vaccines are one of humanity's greatest triumphs: they save more lives than any other medical procedure.

Before the COVID-19 pandemic, vaccines were mostly deployed against viruses that had plagued humans for thousands of years, such as measles and smallpox

Coming Soon: Vaccine Questions in the Age of COVID-19

Vaccines have been around for centuries—and so have questions about them.

Check back soon for an article about vaccine questions in the age of COVID-19.

Created with the support of the City of New York Department of Health and Mental Hygiene. © 2021 City of New York 

Generous support for the COVID-19 Resource Hub and its related teacher professional development programs has been provided by the Irma and Paul Milstein Family.