1. Centers for Disease Control and Prevention. Tdap (pertussis) vaccine and pregnancy. https://www.cdc.gov/vaccines/pregnancy/hcp-toolkit/tdap-vaccine-pregnancy.html; 10 August 2017 [accessed 3 April 2023].
2. Updated recommendations for use of tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine (Tdap) in pregnant women − Advisory Committee on Immunization Practices (ACIP), 2012;Centers for Disease Control and Prevention;MMWR Morb Mortal Wkly Rep,2013
3. Biological factors that may impair transplacental transfer of RSV antibodies: implications for maternal immunization policy and research priorities for low- and middle-income countries;Atwell;Vaccine,2022
4. Centers for Disease Control and Prevention. Flu vaccine safety and pregnancy. https://www.cdc.gov/flu/highrisk/qa_vacpregnant.htm; 2 December 2022 [accessed 3 April 2023].
5. Centers for Disease Control and Prevention. Flu season. https://www.cdc.gov/flu/about/season/flu-season.htm; 20 September 2022 [accessed 3 April 2023].