The 9^th Biennial Scientific Sessions of the Allergy & Immunology Society of Sri Lanka (AISSL) was held at the Conference Hall of the Institute of Biochemistry, Molecular Biology & Biotechnology (IBMBB), University of Colombo on the 26^th March, 2021.

The President-AISSL, Prof Shiroma Handunnetti welcomed the participants on site and on line as it was a hybrid event, and introduced the Chief Guest, Emeritus Professor Kamini Mendis. Following the President’s address by Prof Shiroma Handunnetti, sessions commenced with Free Paper Sessions.

The first Professor Anura Weerasinghe Memorial Oration was delivered by Dr. Rajiva de Silva, Consultant Immunologist, Medical Research Institute & Past President-AISSL. There were six guest lectures delivered by Prof Ashley St. John, Prof. Thsashi Chang, Prof. Suranjith Seneviratne, Prof Gregory Bancroft, Dr. Dinakantha Kumararatne and Dr. Thushan de Silva. Free paper sessions were conducted under the topics Basic Immunology and Clinical Immunology. The 9^th AISSL Scientific Sessions were concluded with the award ceremony for the Best presenters in Basic and Clinical Immunology and Best Poster Presentation.