Dr Wanatpreeya Phongsamart is an Associate Professor of Pediatric Infectious Diseases at the Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. With over two decades of experience, she specializes in Streptococcus pneumoniae, vaccine-preventable diseases, antimicrobial resistance, and paediatric HIV. She earned her medical degree with honours at Siriraj Hospital and completed training in paediatric infectious diseases at the Hospital for Sick Children, University of Toronto.
Dr Phongsamart conducted one of the first prospective studies on macrolide-resistant Mycoplasma pneumoniae in Thai children, contributing important clinical evidence on this emerging pathogen. She also leads research on pneumococcal disease and founded the Pneumococcal Laboratory Network—a collaborative platform that supports surveillance and informs treatment guidelines in Thailand. In 2025, she launched a nationwide genomic study of S. pneumoniae in collaboration with the Ministry of Public Health.
She has authored over 75-peer reviewed publications and serves on expert committees for the Paediatric Infectious Diseases Society of Thailand and the Thai National Immunization Program. Internationally, she is a member of the Working Group on Infectious Diseases of the International Paediatric Association.