Stuart G. Tangye is an immunologist based at St Vincent's Clinical School in Sydney, NSW 2052.
He looks after people with immune system problems. That can mean the body’s defence system doesn’t work the way it should, or it overreacts and causes ongoing inflammation. In many cases, patients have repeated or hard-to-treat infections, or infections that don’t settle as expected.
Some of the conditions he commonly cares for include primary immunodeficiency, which is a group of disorders where parts of the immune system are missing or don’t function well. You might also see people with conditions like Hyper IgE syndrome, Activated PI3K delta syndrome (APDS), or severe combined immunodeficiency (SCID). These can show up from early childhood, and they can affect the lungs, skin, gut, and lymph nodes.
He also works with patients who have immune-related skin problems and ongoing inflammation, such as atopic dermatitis and ichthyosis vulgaris. Autoimmune conditions can be part of the picture too, including APECED and autoimmune polyglandular syndrome type 2. At times, immune issues can also affect growth and cause swelling in organs, like an enlarged liver or spleen.
In real life, it’s not just one diagnosis and done. Immune disorders can be tricky, and symptoms can change over time. Stuart focuses on helping patients and families understand what’s going on, what to watch for, and the next practical steps. This includes looking at how someone responds to infections like pneumonia, flu, COVID-19, or tuberculosis, and what follow-up care may be needed.
He works with a range of care plans, including managing complications from serious infections and supporting treatments such as bone marrow transplant for selected immune conditions. This kind of care needs careful coordination across a team, especially when someone is dealing with something complex or life-threatening.
Alongside day-to-day clinical care, he stays up to date with current research in immunology and how new findings can help with diagnosis and treatment decisions. The goal is simple: safer care, clearer plans, and better outcomes for people living with immune system disorders.