Immunogenicity and safety at twelve months of fractional and standard BNT162b2 booster doses in adults primed with ChAdOx1-S, BBIBP-CorV, or Gam-COVID-Vac in Mongolia: a randomised controlled trial
15 μg and 30 μg BNT162b2 boosters demonstrated comparable immunogenicity and favourable safety. 15 μg BNT162b2 booster doses may improve vaccine acceptability due to lower reactogenicity.
Authors
- Lien Anh Ha (ORCID: https://orcid.org/0000-0002-2401-8980)
- Khaliunaa Mashbaatar
- Shuo Li (ORCID: https://orcid.org/0009-0001-9636-9376)
- Narantuya Namjil
- Lkhagvagaram Batbayar
- Paul V. Licciardi (ORCID: https://orcid.org/0000-0001-6086-6285)
- Kim Mulholland (ORCID: https://orcid.org/0000-0001-7947-680X)
- Bolor Altangerel
- Batbayar Ochirbat (ORCID: https://orcid.org/0000-0002-7963-8976)
- Tsetsegsaikhan Batmunkh (ORCID: https://orcid.org/0000-0001-8730-6536)
- Otgonjargal Amraa
- Cattram Nguyen (ORCID: https://orcid.org/0000-0002-0599-8645)
- Bilegtsaikhan Tsolmon (ORCID: https://orcid.org/0000-0001-5002-6565)
- Nadia Mazarakis (ORCID: https://orcid.org/0000-0001-7681-2775)
- Naranbaatar Avaa
- John Hart (ORCID: https://orcid.org/0000-0002-9637-7974)
- Kerryn A. Moore (ORCID: https://orcid.org/0000-0002-8333-8271)
- Helen Thomson
- Khulan Javkhlantugs
- Claire von Mollendorf (ORCID: https://orcid.org/0000-0003-0927-1731)
- Unursaikhan Surenjav (ORCID: https://orcid.org/0000-0002-5377-8313)
- Khishigjargal Batsukh
- Sarantsetseg Jigjidsuren
- Gantuya Dorj (ORCID: https://orcid.org/0000-0003-2750-5351)
- Frances Justice
- Eleanor Neal (ORCID: https://orcid.org/0000-0001-7998-0942)
- Tsogjargal Burentogtokh (ORCID: https://orcid.org/0000-0002-1473-0245)
- Kathryn Bright
- Otgonbold Jamiyandorj (ORCID: https://orcid.org/0009-0006-8327-5641)
Institutions
- Royal Children's Hospital (AU)
- Mongolian University of Life Sciences (MN)
- Mongolian National University (MN)
- National Center for Communicable Diseases (MN)
- Mongolian National University of Medical Sciences (MN)
- University of the Humanities (MN)
- The LGBT Centre (MN)
Publication Details
- Journal
- Vaccine
- Published
- 2025-10-09
- DOI
- https://doi.org/10.1016/j.vaccine.2025.127840
- Citations
- 2
- Primary Topic
- SARS-CoV-2 and COVID-19 Research
- Type
- article
- Field-Weighted Citation Impact
- 2.79