1. A Novel Coronavirus from Patients with Pneumonia in China, 2019;The New England journal of medicine,2020
2. World Health Organization (WHO). https://www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports.
3. Risk Factors of Healthcare Workers with Corona Virus Disease 2019: A Retrospective Cohort Study in a Designated Hospital of Wuhan in China;Clinical infectious diseases: An official publication of the Infectious Diseases Society of America,2020
4. COVID-19 in health care workers – A systematic review and meta-analysis;The American journal of emergency medicine,2020
5. COVID-19 among Health Workers in Germany and Malaysia;International Journal of Environmental Research and Public Health,2020