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Why do we get sick?
When you've been in bed for two days clutching a bottle of cough medicine and a box of tissues, you know it's germs behind your misery. How do they do it?
IMMUNE SYSTEM
Inside your body, there is a mechanism designed to defend you from millions of bacteria, microbes, viruses, toxins and parasites. Find out the different components and how the human immune system works.
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What is herd immunity?Vaccination means safety in numbers. The more people that are immune to a virus, the more protected we all are. So what happens when people stop getting their shots? See more »
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Why do we get sick?When you've been in bed for two days clutching a bottle of cough medicine and a box of tissues, you know it's germs behind your misery. How do they do it? See more »
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Why does your body temperature rise when you have a virus such as the flu?Your body temperature monitored by your immune system as it fights off infection. Learn why a high temperature helps fight infection. See more »
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