Figure 3 | Scientific Reports

Figure 3

From: Reports of acute adverse events in mRNA COVID-19 vaccine recipients after the first and second doses in Japan

Figure 3

Timing of acute adverse event by age group. Histograms for the time from the vaccine injection to the occurrence of the acute adverse events after the first vaccine dose (A, B) and after the second vaccine dose (C, D) are shown. The peak time of occurrence of vasovagal syncope/presyncope was between 10 and 12 min after the injection, and that of acute allergic reactions was between 16 and 18 min after the injection. The figure was created using Microsoft Office Excel 2016 software (https://www.microsoft.com).

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