### S4 Fig.

A |  |
--- | --- | ---
B | C |
D | E |
F | G | H

Fig. S4: Comparison of mortality rates with and without vaccination. (A) Japan: the data was published only once when Delta caused an epidemic. (B) and (C) USA: without and with booster, respectively. (D) and (E) Switzerland: Owing to the small number of deaths and lack of calculations, box plots have not been formed for recent data. (F, G, H) Chile: ratios between the indicated doses and (0 or 1) doses.

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