COVID-19 Vaccine

Vaccines save millions of lives each year. Vaccines work by training and preparing the body’s natural defenses – the immune system – to recognize and fight off the viruses and bacteria they target. If the body is exposed to those disease-causing germs later, the body is immediately ready to destroy them, preventing illness.

COVID-19 Vaccine Mythbusters

COVID-19 Vaccines FAQs

How does a COVID-19 vaccine work?

COVID-19 vaccines help our bodies develop immunity to the virus that causes COVID-19 without us having to get the illness (learn more).

What types of COVID-19 vaccines are being developed? How would they work?

Scientists around the world are developing many potential vaccines for COVID-19 (learn more).

Are there side effects from the COVID-19 vaccines?

Some people may experience pain and swelling on the arm where they received the shot. Fever, chills, tiredness and headache may also be experienced (learn more).


The World Health Organization (WHO) today recommended the Oxford/AstraZeneca coronavirus vaccine for use worldwide by all adults, including in people over the age of 65.

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