Contents Issue 3-4 July 2021 Volume 28, Issue 3-4 , 2021 View pdf Burden and Associated Factors of Coronavirus Disease (COVID-19) in Al-Buraimi Governorate, Oman-2020. Hanan Hassan Al-Marbouai, Eman Elsayed Abd-Ellatif Evaluation of the Cold Chain Expanded Program on Immunization at Governmental and Private Health Care Centers in Riyadh city, Saudi Arabia, 1442H - 2021G Abdulrahman Hussain Alqahtani, Suhair Saleh Alsaleh Outbreak of COVID-19 among healthcare workers at a Diabetic Center, Al-Ahsa, Saudi Arabia - April 2020. Abdullah Ali AL SAYAFI, Joana Gaines The first Cluster of COVID-19 cases in the Sultanate of Oman in Muttrah District, 2020. Asim Mohammed Hamood Al Manji, Khalid Algaali
