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. 2022 Jan 31;17(1):e0263014. doi: 10.1371/journal.pone.0263014

Fig 1. IgG levels against the receptor binding domain (RBD) of the SARS-CoV-2 protein post-vaccination.

Fig 1

A, after 2 doses of BNT162b2 vaccine. Individuals are divided by age groups. The red dots highlight the IgG levels in individuals that resulted positive to SARS-CoV-2 infection by rtPCR. The dashed red line indicates the threshold of positivity for our serological test (positives>0.28). Boxes define the 25th and the 75th percentiles; horizontal line within the boxes indicates the median and whiskers define the 5th and the 95th percentiles. B, as for panel A after 1 dose of AstraZeneca (AZ) vaccine.