Agnieszka Strzelak, MD, PhD, is a pediatrician and pediatric pulmonologist with extensive clinical experience in lung ultrasound (LUS), working at the Department of Pediatric Pulmonology and Allergy at the Medical University of Warsaw, Poland. Her main clinical and research interests include lower respiratory tract infections, particularly complicated pneumonia, and the use of LUS in the diagnosis, assessment of disease severity, and monitoring of treatment response in children. She is actively involved in clinical research and academic teaching.