Our Clinical Practice Doctors
Professor Jonny Peter
[email protected]
MBChB; FCP (SA); MMed; Phd
Professor Jonathan Peter is Head of the Division of Allergy and Clinical Immunology at Groote Schuur Hospital. He also heads the Allergy and Immunology Unit at the University of Cape Town Lung Institute. In February 2016, he became the first HPCSA registered allergist in the College of Physicians, South Africa. He is the recipient of a number of awards for medical training including the 2012/2013 Oxford Nuffield Medical Fellowship where he undertook sub-specialist training in Clinical Immunology and Allergy at the John Radcliffe Hospital and a post-doctoral period in the laboratory of TB vaccinologist, Professor Helen McShane. Jonathan has over 50 publications in high impact factor journals, and an H-index of 26. In 2015, he was awarded a Silver Scientific Merit Award as an outstanding early-career researcher by the South African Medical Research Council. His current clinical and research interests include: i) urticaria and angioedema, ii) drug and food additive allergy, iii) indigenous therapies for allergic diseases and iii) primary immunodeficiency diseases. Read full bio
Dr Thulja Trikamjee
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MBChB, FC Paed(SA), Dip Allerg(SA), Cert. Allerg(SA) Paed, Allergy &Immunology(UEMS)
Thulja is an Allergologist and specialist Paediatrician, with a sub-specialty Certificate in Paediatric Allergy, Diploma in Allergy, and the Allergy &Immunology Certificate of the Union of European Medical Specialists. She serves on the board of two international allergy organizations, namely the European Academy of Allergy and Clinical Immunology(EAACI) and the World Allergy Organization(WAO). She is also a member of the Allergy Society of South Africa(ALLSA) and American Academy of Allergy and Immunology(AAAAI). Her fellowship in Allergology was attained through the Discovery Foundation, who awarded her the Sub-specialist Award in 2015, and was also the recipient of the MSD ALLSA Research Award 2016. She was only the second person in Africa to have completed the Certificate in Allergy. Thulja has co-authored several publications in international peer reviewed journals, and presented her work internationally. She appears regularly on health related talk shows, is an examiner in the Diploma in Allergy and is recently appointed to the Allergy Prevention Committee of the World Allergy Organization.. She has completed courses in Food Allergy, at the University of Manchester, and participated in an Aerobiology & Pollution School in Durbrovnik, Croatia.
Dr. Janet van der Walt
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MBChB (US); MFamMed (UFS); CCFP (Canada); Dip Allerg (SA) Cert. Allerg (SA)
Dr. Janet van der Walt recently completed her 2 year Fellowship training in Allergology and Clinical Immunology at Groote Schuur and Red Cross War Memorial Hospitals. She is an experienced family physician and is registered as a specialist in this field in South Africa and also in Canada. She obtained her MFamMed at the University of the Free State. Janet is a member of the Allergy Association of South Africa and has presented at the Annual ALLSA Congress. Janet is a compassionate clinician who believes in a holistic approach in the management of her patients.
Dr Cathryn McDougall
Dr Cathryn McDougall graduated from the University of Cape Town in 2020 with First Class Honours. After completing her Community Service year, she joined the UCT Lung Institute as a Medical Officer and has worked in both a research and clinical capacity within the Allergy and Immunology team at Groote Schuur Hospital for more than two years.
Dr McDougall completed her Allergy Diploma in November 2025. She has presented research internationally at the European Academy of Allergy and Clinical Immunology Congress and has published several papers locally and internationally, with a special interest in urticaria. She was awarded a grant by the Allergy Society of South Africa to investigate the impact of food additives and the microbiome in Chronic Urticaria. She is excited to now be seeing patients in private practice, where she hopes to provide evidence-based, patient-centered allergy care.
Dr Marshé Maharaj- Setlalekgosi
[email protected]
MBCHB(UP) | FCPAED(SA) | MMED(UP) | Dip Allerg(SA) | Cert. Paed Allergy.(SA)
Paediatrician and Allergologist
Dr Maharaj completed both her undergraduate medical degree and postgraduate paediatric specialisation at the University of Pretoria. After several years of practicing as a general paediatrician, Dr. Maharaj developed a keen interest in the field of allergies, which led her to pursue an additional qualification in allergology at the University of Cape Town.
With her dual expertise in paediatrics and allergology, Dr. Maharaj is uniquely equipped to meet the health needs of children and adults with allergies. Her areas of expertise include food allergies, allergic rhinitis, eczema, asthma, urticaria(hives) and angioedema,penicillin allergies and children with recurrent infections.
In addition to her private practice, Dr. Maharaj is actively involved in the public healthcare sector, working at the Red Cross War Memorial Children’s Hospital. She also contributes to the academic community by training and educating paediatricians and general practitioners in allergy management.
Please see her website for more info and booking details: www.paedsandallergy.co.za