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Antibody titer in transplant recipients pre-/post-immunization with each dose of mRNA-1273 (Moderna) COVID-19 vaccine and convalescent titers of transplant recipients after COVID infection. Horizontal lines represent median and interquartile range. Dotted red line represents positive cut-off value of assay at 0.8 U/mI [Color figure can be viewed at wileyonlinelibrary.com]
