Best Immunologist in Sydney

Dr Narinder Kaur


Dr Katie Frith is a Paediatric Allergist and Paediatric Immunologist Sydney. She had extensive experience
in managing Paediatric food allergy (birth to 16 years), eczema/severe eczema (birth to 16 years), drug allergies, asthma, allergic rhinitis and immunotherapy for aero allergies. She is currently involved in research on peanut allergy with the Allergy and Immunology department at The Children’s Hospital at Westmead.

Dr Shane Kelly


Dr Shane Kelly is an Australian-based health professional. Shane is trained as an Allergy Specialist

& Immunologist and has 2 practices located in Sydney, Westmead. Dr Kelly has a strong interest in the dermatological manifestations of immunological conditions and the use of targeted immunological drugs such as the novel biologic agents in the treatment of these conditions.

Dr Lawrence Ong


Dr Lawrence Ong is a Clinical Immunologist and Allergist whose clinical practice encompasses allergic,

autoimmune disease and primary immunodeficiency. His clinical interests include diagnosis and management of allergic rhinitis, chronic spontaneous urticaria and autoimmune diseases such as Sjogren’s syndrome and systemic lupus erythematosus.

Dr James Yun


Dr James Yun is a consultant physician in allergy, clinical immunology and immunopathology. He manages

allergic disorders in both children (children of all ages) and adults, and immunological conditions in adults. Dr Yun obtained his medical degree from the University of Melbourne in 2003 and completed his fellowship with the Royal Australasian College of Physicians and the Royal College of Pathologists of Australasia in 2012.

Dr Katie Frith


Dr Katie Frith is a consultant specialist in paediatric immunology and allergy. She graduated from the

University of New South Wales and undertook her general paediatric training in London before returning to Sydney. Katie trained in immunology and allergy at both Sydney Children’s Hospital and the Children’s Hospital at Westmead. Katie is an active member of ASCIA, the peak professional body for immunologists in Australia and New Zealand.

Dr Brad Frankum


Dr Brad Frankum is a Consultant Clinical Immunologist and Allergy Specialist. He has been caring for

people with immune system disorders and allergies in western and southwestern Sydney for more than 20 years. He established the first clinical immunology and allergy service at Nepean Hospital Penrith in 1996, and then the clinical immunology and allergy service at Campbelltown and Camden Hospitals in 2003.

If you find yourself to be in a situation where finding the best Sydney Immunologist this. Below is a list of the top Immunologist in Sydney. To help you find the best Immunologist Sydney located near to you, we put together our own Sydney Immunologist list based on patient reviews.

What is Immunology?

In human medicine, immunology refers to the teaching of the human immune system, i.e. the biological and biochemical basis of the physical defense against pathogens.

She examines the reaction of the organism to the penetration of exogenous substances, i.e. deals with the organic detection and defense mechanisms and their disorders. Immunology is an independent subject within internal medicine.

The immunology deals with the defense mechanisms of the body and its disorders. The immune system is the bulwark against invading harmful bacteria, viruses, fungi, parasites and poisons.

If the immune system is weakened, it is easy for such intruders. An excessive immune reaction, such as occurs, for example, in allergies and autoimmune diseases, is also problematic.

The tasks of immunology include: Direct support of the body’s defenses , e.g. through vaccinations, therapeutic antibodies or antisera in the event of poisoning. Immune stimulation , i.e. the strengthening of the immune system in the case of acquired or congenital immunodeficiency (e.g. in the case of HIV or after cancer therapy). Immunosuppression , i.e. the dampening of the immune system in the event of allergies, autoimmune diseases (such as multiple sclerosis , rheumatoid arthritis , ulcerative colitis , Crohn’s disease ) and after transplants in order to prevent a rejection reaction. Immunity & Immune System: The unspecific defense system (immunity) is innate and is not directed against a specific substance but against all pathogens. This innate immune response consists of a number of physical (e.g. skin and mucous membrane barriers) and biological protective mechanisms. It enables resistance to the effects of certain microorganisms. In this context, resistance is the sum of all innate, non-specific, constantly active defense mechanisms of an organism directed against a large number of pathogens.

The non-specific immunity consists of different components, all of which have the task of destroying and breaking down structures foreign to the body. Put simply, the fight follows the following scheme: cells that have been attacked by bacteria secrete a chemical signal substance (interferons), which is recognized by so-called phagocytes (granulocytes and macrophages) and thus enables the affected areas to be located. The phagocytes find the affected tissue and eat and digest the attacked cells and pathogens. This process is called phagocytosis.

Another system of unspecific defense against pathogens is the so-called complement system. It consists of various proteins (complement factors), most of which are produced in the liver. The marking of hostile cells for recognition by the phagocytes is an essential task of the complement system in the non-specific defense reaction.

With the specific defense – also known as adaptive immune response – the body in turn produces so-called antibodies, which specifically (i.e. very precisely) match a certain pathogen (the so-called antigen) and render it harmless. The detection of antibodies is important in diagnosing infections.

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