1. World Health Organization (WHO). Immunization, Vaccines and Biologicals. Available at: https://www.who.int/teams/immunization-vaccines-and-biologicals/policies/who-recommendations-for-routine-immunization---summary-tables [last accessed 2 May 2023].
2. Centers for Disease Control and Prevention (CDC). Adult Immunization Schedule. Available at: https://www.cdc.gov/vaccines/schedules/hcp/imz/adult.html [last accessed 30 May 2023].
3. Advisory committee on immunization practices. Recommended adult immunization schedule, United States, 2023;Murthy;Ann Intern Med,2023
4. A global prescription for adult immunization: time is catching up with us;Poland;Vaccine,2010
5. World Health Organization (WHO). Immunization Agenda 2030: A Global Strategy to Leave No One Behind. Available at: https://www.who.int/teams/immunization-vaccines-and-biologicals/strategies/ia2030 [last accessed 30 May 2023].