Volume 26-Issue 1-4-2019 MERS-CoV outbreak in Wadi Aldawasir General Hospital’s renal dialysis unit, March 2017. Health knowledge, attitudes and practices among pilgrims at Prince Mohammed Bin Abdulaziz International Airport in Medina during Hajj 1439H (2018). Outbreak of acute gastrointestinal illness at a school in Arar, March 2017.