Immune system

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

Read more

Can you boost your immune system against the COVID-19 coronavirus?

It's OK to feel anxious about the COVID-19 coronavirus. Here's what you can do to protect yourself from viruses — and what won't help, such as vitamin supplements.

Read more

Zinc and your health

Zinc is a mineral that is essential for many of the body's normal functions and systems, including the immune system, wound healing, blood clotting, thyroid function, and the senses of taste and smell.

Read more

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.

Read more

Autoimmune conditions

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

Read more

Adenoids

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

Read more

Allergies and hypersensitivities

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

Read more

Lupus

Lupus is a disease of the body’s immune system. Although its causes are not yet entirely known, lupus treatments are available.

Read more

Lymphoma

Lymphoma is a cancer that affects the immune system. Although lymphoma is a serious disease, good treatment options are available.

Read more

Food allergies

Some people have an allergic reaction to a normally harmless ingredient or type of food. This immune system response can range from mild to severe.

Read more

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.

Read more

Autoimmune diseases

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

Read more

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.

Read more

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.

Read more

Vaccinations and pregnancy

Your immune system can weaken during pregnancy, so you and your baby can be susceptible to infections and illnesses. Some vaccinations are recommended.

Read more

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.

Read more

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.

Read more

White blood cells

White blood cells are a vital part of your immune system, detecting and dealing with infections. Find out more more about health problems involving white blood cells.

Read more

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.

Read more

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.

Read more

Allergies

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

Read more

Sarcoidosis

Sarcoidosis is an inflammatory disease that can affect many of the body’s organs including the lungs and lymph nodes. Learn more about sarcoidosis including its symptoms and treatments

Read more

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.

Read more

People with underlying health conditions and COVID-19

Here’s what people with underlying health conditions need to know about COVID-19, including who is at greater risk and getting vaccinated.

Read more

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.

Read more

Scleroderma

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

Read more

Myasthenia gravis

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

Read more

Vasculitis

Vasculitis is an autoimmune disease that causes inflammation of blood vessels. Discover more about its diagnosis and treatment options.

Read more

Hives

Hives is a skin rash that is often triggered by an infection or allergy. Learn more about hives rash (urticaria) causes, symptoms and treatment.

Read more

Adenoidectomy

Adenoidectomy is the removal of the adenoids, small lumps of tissue at the back of the nose in children. The adenoids can cause problems if they get infected.

Read more