Immune system

Your body's immune system is designed to protect you from, or get rid of, infection. Learn more about how the immune system works.

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Zinc and your health

Zinc is a mineral that is essential for many of the body's normal functions and systems. Learn more about how much you need and how to get enough.

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Autoimmune conditions

Autoimmune diseases strike when the immune system attacks healthy cells in the body. Read about the causes, symptoms and treatment options.

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Allergies and hypersensitivities

An allergic reaction occurs when the immune system overreacts to a substance. Find out about common allergies, their symptoms and treatments.

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Adenoids

The adenoids are small lumps of soft tissue found at the back of the nose. Healthy adenoids are part of the immune system in young children.

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Probiotics

Probiotics are live bacteria and yeasts that are good for your digestive and immune systems. They’re naturally found in food or taken as supplements.

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Connective tissue diseases

Connective tissue diseases can affect many different areas of the body and the immune system, caused by single gene mutations or inflammation. Learn more here.

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Autoimmune diseases — an overview

Autoimmune diseases occur when your immune system attacks your own body. Learn more about the diagnosis and treatment of these diseases.

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Cancer immunotherapy

Immunotherapy is a type of cancer treatment that boosts the immune system so it can fight the cancer. Learn how it works and which cancer types immunotherapy can treat.

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Lupus

Lupus is a disease where your immune system attacks your own normal cells. Its cause is not yet entirely understood, but treatments are available.

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White blood cells

White blood cells are part of your immune system. They help detect and deal with infections. Learn about health problems involving white blood cells.

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Foods high in vitamin A

Vitamin A plays an important role in keeping you well and maintaining a healthy immune system. Here's how to include enough vitamin A in your diet.

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Sjögren’s syndrome

Sjögren’s syndrome is a condition of your immune system that commonly affects your eyes and salivary glands. Here's how your doctor may diagnose it.

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Vitamin A and your health

Vitamin A is important for good vision, healthy skin and for supporting the immune system. Most Australians can get enough from eating a varied, healthy diet.

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Vitamin E and your health

Vitamin E is important for proper functioning of many of the body's organs. It helps to maintain healthy skin, good vision, and correct functioning of the immune system.

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What to do if you are underweight

Being underweight could lead to health problems such as a weak immune system and bone fractures. Discover the causes, symptoms and when to get help.

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HIV and AIDS medication (antiretrovirals)

HIV medications (called 'antiretrovirals') fight to stop the virus multiplying while helping to protect the immune system from damage caused by HIV. Taking your medicines exactly as prescribed helps reduce your chance of developing resistance to treatment, and living a long and healthy life.

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Sarcoidosis

Sarcoidosis is an inflammatory disease and can affect many organs including the lungs and lymph nodes. Learn more about its symptoms and treatments.

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Immunisation or vaccination - what's the difference?

What's the difference between immunisation and vaccination? Find out how vaccines work and the difference between primary and booster doses.

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Allergies

Information about allergy types, as well as allergy testing, anaphylaxis, antihistamines and common related conditions such as asthma and hay fever.

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Lymph nodes

Lymph nodes filter blood and fight infection. They also play an important role in cancer diagnosis. Find out more about lymph nodes and how they work.

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Guillain-Barre syndrome

Guillain-Barre syndrome is an autoimmune disease that causes weakness, numbness or paralysis. Learn more about its symptoms, diagnosis and treatment options.

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Rashes

Rashes can be red, pink, purple, flat or bumpy, itchy, scaley or pus filled. Read on to learn about the causes and management of various rashes.

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Shingles

Shingles is a painful rash caused by the chickenpox virus. Here's how to recognise the symptoms, prevent shingles and get the best treatment for you.

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Kaposi sarcoma

Kaposi sarcoma is usually found under the skin, or in the lining of the mouth, nose or throat, and is associated with HIV/AIDS. Find out why here.

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Vasculitis

Vasculitis is a group of disorders and is caused by inflammation of blood vessels. Read more about vasculitis types, symptoms and treatment options.

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Scleroderma

Scleroderma is an autoimmune condition affecting the connective tissue in the body. Learn more about its symptoms, diagnosis and management.

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Myasthenia gravis

Myasthenia gravis is an autoimmune disease of the neuromuscular system that causes muscle weakness. Learn about symptoms, diagnosis and treatment.

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A guide to hay fever

Hay fever, or allergic rhinitis, can be triggered by dust, grass and pollen. Learn about antihistamine medicines and other ways to manage symptoms, plus find out when an allergy test might be a good idea.

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Lymphoma

Lymphoma is a type of cancer that affects your lymphatic system. Find out about the types of lymphoma, plus symptoms and treatments for lymphoma.

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