. Author manuscript; available in PMC: 2022 May 2.
Published in final edited form as: Vaccine. 2021 Jun 19;39(31):4335–4342. doi: 10.1016/j.vaccine.2021.06.021
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).