Figure 6 A stacked column presentation compared adverse reactions with significant differences (p˂0.05, Fisher’s exact test) reported after 2 nd  and 3 rd  Pfizer-BioNTech vaccine doses according to their gender. Data were presented as the percentage of individuals who have reported a particular adverse reaction relative to the total number of individuals who have reported any adverse reaction (n=166 for the males and 523 for females).