Responsivity of each individual receiving SARS-CoV-2 Vaccination. Each single black line connecting bars represent the evolution of the anti-SPIKE IgG titer for a particular individual before vaccination (T0), 21–25 days after receive the dose 1 (21-25 daD 1), and 21–25 days after receive the dose 2 (21-25 daD 2) for the vaccines A Sputnik V, B AstraZeneca, or C Sinopharm. *: p < 0,05; **: p < 0,01; ***: p < 0,001 Friedman statistic test with Dunn post test for multiple comparisons.