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Anti–SARS-CoV-2 IgG seroconversion rates after COVID-19 vaccination (all vaccine). The anti–SARS-CoV-2 IgG seroconversion rates between the CMT and non-CMT groups at 4 weeks after two-dose vaccination were 78.9% (95% CI, 68.1 to 87.5) and 96.5% (95% CI, 80.1 to 99.3), respectively, P = .001. The grey bars indicate 95% CIs. CMT, chemotherapy; IgG, immunoglobulin G; non-CMT, nonchemotherapy.
