Incidence and epidemiological characteristics of COVID-19 among health care workers in Saudi Arabia: A retrospective cohort study.

Introduction: Novel coronavirus (SARS-CoV-2) is a highly infectious serious acute respiratory syndrome that has emerged in Wuhan, China, and has spread rapidly throughout the world including Saudi Arabia. An important source of infection of 2019 novel coronavirus (2019-nCoV) is healthcare-associated infection (HAI). Healthcare workers (HCWs) have a greater risk of acquiring COVID-19 infection than the general population. Globally, thousands of HCWs have lost their lives due to COVID-19 infection.

Aim: Identify Incidence Rate and epidemiological characteristics of COVID-19 infection among health workers in Saudi Arabia.

Methodology: A retrospective cohort study carried from March to November 2020. HCWs selected by a Complete Enumeration Survey method. Data analyzed in frequencies and percentage tables. To test the differences, post hoc after chi-square-(χ) tests were used.

Results: As of November 30, 2020, a total of 57,159 HCWs tested positive with COVID-19. Their median age was 34 years, and 53% were male. Nurses were the most infected HCWs category (36%). The most common source of infection was from the community (78%). The majority of HCWs who acquired the infection from healthcare facilities got the infection from another HCW (63%). There was a significant difference between community and healthcare-acquired COVID-19 in relation to gender (P < 0.001) nationality (P < 0.001) job categories (P < 0.001) three age groups (<26: P = 0.012, 26-35 and 36-45: P < 0.001), and among HCWs who worked in MOH and private healthcare facilities (P < 0.001). The total number of reported deaths among HCWs during the study period was 198, with a case fatality rate of (0.35%).

Conclusion: This study findings show that infected HCWs characteristics were similar to the previous studies and indicate incidence rates of 10% among COVID-19 infected HCWs in Saudi Arabia. Analysis of the infection status of HCWs is critical, to understand their needs and challenges, improve protective measures, and provide effective recommendations for policymakers.