Nature Medicine
Volume 27 Issue 11, November 2021
https://www.nature.com/nm/volumes/27/issues/11

Article | 15 September 2021 | Open Access
Safety and immunogenicity of SARS-CoV-2 variant mRNA vaccine boosters in healthy adults: an interim analysis
Preliminary and exploratory analyses show that a third dose of the COVID-19 vaccine mRNA-1273 or variant-modified boosters can boost levels of neutralizing antibodies against SARS-CoV-2 variants.
Angela Choi, Matthew Koch, Darin K. Edwards