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. 2022 Jun 10;10(6):1191. doi: 10.3390/microorganisms10061191

Figure 1.

Figure 1

Plasma levels of antibodies of the IgG class directed against the receptor binding domain of SARS-CoV-2 and other coronaviruses causing common cold (OC43, HKU1, 229E, and NL63) in 148 patients with COVID-19 of different levels of severity. Boxes represent median, 25th and 75th percentile, while whiskers represent 5th and 95th percentile. Statistical significance of mild vs. moderate/severe: *** p = 0.006; ** p = 0.026; * p = 0.05. Statistical significance of controls vs. mild: ** p = 0.0001; * p = 0.048. Statistical significance of controls vs. moderate/severe: ** p = 0.0001; * p = 0.028.