The only thing standing between invaders such as bacteria, viruses, parasites and fungi and our devastation is our immune system. kurtxio/Flickr

Explainer: how does the immune system learn?

The immune system does such a good job most of the time that we only really think about it when things go wrong. But to provide such excellent protection, it must constantly learn.
The innate immune response causes the common signs of inflammation including swelling, pain, heat, redness and loss of function. Brandon Daniel/Flickr

Explainer: how does the immune system work?

The immune system is critical for protecting against illness-causing organisms, such as viruses, bacteria and fungi, which are collectively known as pathogens. Without it, we would quickly become infected…
When cells attack - autoimmune disease develop when immune cells mistakenly attack a part of the body. Ari Moore/Flickr

Explainer: what are autoimmune diseases?

Autoimmune diseases, which include a range of around 80 different illnesses from rheumatoid arthritis to type 1 diabetes and multiple sclerosis, occur when the immune system attacks the body. These diseases…

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