Quotidian Fevers

Fevers that repeat on a daily basis.

Rare disease

An uncommon illness that affects very few people. In Australia it is defined as affecting less than 1 in 2000.

Rheumatologist

A doctor who specialises in treating patients with rheumatic diseases, including arthritis, many autoimmune diseases, and many autoinflammatory diseases.

Schnitzler syndrome

A rare autoinflammatory condition causing fever, rash, bone pain, and other symptoms.

Serum amyloid A (SAA)

An acute-phase protein that can be used as an inflammatory marker.

Still's disease

Still's disease is an autoinflammatory disorder with no known genetic basis, that is usually diagnosed clinically by ruling out other conditions. It can involve non-specific autoinflammatory symptoms such as a daily spiking (quotidian) fever, sore throat, rash, headache, feeling very tired (fatigue), or painful joints and muscles. Previously if symptoms began before the age of 16, the diagnosis would be Systemic Juvenile Idiopathic Arthritis (SJIA). If symptoms began after 16, the diagnosis would be Adult-Onset Still's Disease (AOSD), however as of 2025 they are both now known as Still's disease.

Symptoms

A description of the way you are feeling due to an illness.

Systemic

Affecting the entire body, rather than a single organ or body part.

Systemic Juvenile Idiopathic Arthritis (SJIA)

See Still's disease


Subscribe to our regular ANZFAID newsletter and download a free copy of our AutoInflammatory Tracking Toolkit.

If you love any of the articles on our site we would you love you to share them to help raise awareness.

Medical Disclaimer

The information and support services provided by Australia and New Zealand Forum for AutoInflammatory Diseases Limited (hereafter known as ANZFAID), are intended for general information and peer support purposes only. ANZFAID is a not-for-profit organisation and does not provide medical, diagnostic, or therapeutic advice or treatment.

Nothing on our website, in our publications, at our events, or in any of our communications should be taken as medical advice, nor is it intended to replace consultation with a qualified healthcare professional. Always seek the guidance of your doctor or another qualified health professional with any questions you may have regarding your health or a medical condition.

ANZFAID does not endorse or recommend any specific healthcare provider, treatment, medication, or service. Information shared through our organisation—whether by staff, volunteers, or community members—should not be considered a substitute for professional medical advice.

Use of our services and materials is at your own discretion and risk. While we aim to provide accurate and supportive information, ANZFAID accepts no liability for any loss or damage suffered as a result of reliance on information provided.

All materials contained within this website are subject to copyright and MUST NOT be copied or shared unless in their entirety and with relevant links in place to direct back to the original source on this website.