Towards a unified regional surveillance system: the Gulf CDC’s first initiatives - Al Mudarra, Sami; Alghamdi, Lamis; AlHatlan, Ahmed; Amato Gauci, Andrew; Kramek, Aleksandra Polkowska; Alqurashi, Alaa; Alzuhayri, Nouf; AlShiban, Sadeem; Alghamdi, Bushra; Penttinen, Pasi (Frontiers in Public Health, 2025)