Side effects
Side effects from immunizations are usually minor. For example, swelling around the site of the injection, or a slight redness t ... » Read on How it works
Newborn babies have what is called a 'passive immunity' to several diseases, such as measles and rubella. This is because the an ... » Read on
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How it works
Innate immunity The immune system works to protect the body from potentially harmful organisms, such as bacteria a ... » Read on Why it is necessary
Vaccination is very effective in preventing and reducing the impact of serious illness. Some diseases, such as smallpox, have be ... » Read on
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