Professor Watchara Kasinrerk is an immunologist who received his PhD in immunology from Austria. He researches monoclonal antibody production and application at Chiang Mai University. His lab produces monoclonal antibodies using various methods for characterizing leukocyte surface molecules and developing immunodiagnostic kits. Recently he developed a non-flow cytometric method for CD4+ T cell enumeration using a hematology analyzer, providing an alternative for HIV/AIDS monitoring in limited resource settings.