Comparing the SARS-CoV-2-Specific Antibody Response in Human Milk after Homologous and Heterologous Booster Vaccinations

Researchers investigated the longitudinal SARS-CoV-2-specific antibody response in human milk of 26 lactating women who received a COVID-19 booster dose of an mRNA-based vaccine, and evaluated if this response differed for participants who received a similar or different vaccine type in their primary vaccination series.