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Inactivated or live viral/bacterial vaccines

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The vaccines introduces an inactivated/

weakened form

of the virus/bacteria into the body

The body's immune system produces antibodies to defend against the virus/bacteria

2

1

4

Vaccines enhance your body's natural defences, without causing illness

3

When the real active virus/bacteria enters the body, it is recognised by the defence system which may eliminate it

Source: 

World Economic Forum

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