RhEACH are working with researchers from the Telethon Kids Institute, including a Medical Student researcher from the University of Western Australia in Perth to better understand adverse reactions to benzathine penicillin G. They are seeking case reports of adverse reactions from around the world. If you have had a patient experience any reaction (allergy, collapse, pain) in the last 10 years and would be willing to answer a short survey, your participation in this study would be greatly appreciated. Please contact Ms Shannon Marantelli for more information.