Mr Agius is Lecturer in ENT at the University of Malta. He is Past President of the Malta Association of Otolaryngologists and Head and Neck Surgeons and represents the specialty at the European Union of Medical Specialists.
He has published several scientific papers in peer-reviewed international journals and is active in postgraduate training. He introduced postgraduate online training modules in Malta in 2006.
His main interests include rhinoplasty and sinus disease but he has also carried out research into glue ear, the main cause of hearing loss in children.