Fig. 1
Effect of vaccination on IgG and IgA presence in breast milk. Results of IgG (A) and IgA (B) levels of the BioNtech/Pfizer, Moderna, and Oxford/AstraZeneca vaccines were grouped according to the post-vaccination days. Time points shown in the figure are as following: Post-1st dose (2 weeks after 1st dose of the three studied vaccines), post-2nd dose (2 weeks after 2nd dose). One-way ANOVA with a Tukey’s post hoc test for multiple comparisons was performed to assess the statistical significance between groups. Data is presented as mean and 95% of CI of the log-transformed arbitrary units (AU). Different colors represent the different vaccine types. All participants were included in the plots. *p <0.05, **p <0.01, ***p <0.001, and **** p <0.0001