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. 2022 Jul 4;9:910987. doi: 10.3389/fmed.2022.910987

FIGURE 2.

FIGURE 2

Anti-SpikeS1 IgG antibody titer after 3rd vaccination in 193 kidney transplant recipients, not responding previously with seroconversion to 1st and 2nd vaccination. This figure shows anti-SpikeS1 IgG antibody titers after the 2nd and 3rd vaccination, depending on the vaccine type of the 1st and 2nd vaccine type being BNT162b2-mRNA (A) and 1273-mRNA (B). The gray lines indicate the upper and lower threshold of the test (384 and 3.2 BAU/ml), respectively. Colored horizontal lines enclose and delineate the gray area for anti-SpikeS1 IgG antibody titer positivity (25.6 and <35.2 BAU/ml). The gray area still indicates a lack of seroconversion. A “weak” reaction (>3.2 and <35.2 BAU/ml) was distinguished from a negative reaction, the latter indicating 3.2 BAU/ml, in our statistical approach, while all values below 25.6 BAU/ml represent a negative antibody reaction according to the manufacture leaf. Blue progress lines indicate the antibody titer of kidney transplant recipients who seroconverted after a 3rd dose, whereas yellow progress lines indicate a lack of seroconversion.