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. 2021 Nov 27;102:108406. doi: 10.1016/j.intimp.2021.108406

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Fig. 2 — Values concentration of the anti-RBD (left panels) and neutralizing (right panels) antibodies, measured after Astrazeneca/Vaxzevria (upper panels) and Pfizer-Biontech/Comirnaty (lower panels) vaccine. The three symbols represent the median values obtained from data recorded in a period of 4 months for subgroup not infected (squares), those who experienced the natural infection before vaccination (dots), those who acquired an asymptomatic infection (triangles). Error bars represent the 25th and the 75th percentile.