1. World Health Organization. Hepatis A fact sheet. Available at: http://www.who.int/news-room/fact-sheets/detail/hepatitis-a. Accessed on May 7, 2020.
2. World Health Organization. The immunological basis for immunization series. Module 18: Hepatitis A. Update 2019. Available at: http://apps.who.int/iris/handle/10665/326501. Accessed on May 7, 2020.
3. Centers for Disease Control and Prevention. Epidemiology and prevention of vaccine-preventable diseases. Chapter 9: Hepatitis A. In: Hamborsky J, Kroger A, Wolfe S, editors. 13th ed. Washington D.C. Public Health Foundation; 2015.
4. Viral hepatitis and acute liver failure: Still a problem;Sedhom;Clin Liver Dis,2018
5. Type A viral hepatitis: A summary and update on the molecular virology, epidemiology, pathogenesis and prevention;Lemon;J Hepatol,2018