Myocarditis and pericarditis events reported to VAERS following Pfizer/BioNTech COVID-19 vaccine (Comirnaty), by dose Datalock point 14 March 2022
| Age group | Myocarditis | Pericarditis | ||||||||||||||
| Male | Female | Sex not specified | Total | Male | Female | Sex not specified | Total | |||||||||
| n | % | n | % | n | % | N | % | n | % | n | % | N | % | N | % | |
| Dose 1 | ||||||||||||||||
| <6 months | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| 3–5 years | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 1 | 0.53 | 0 | 0.00 | 0 | 0.00 | 1 | 0.30 |
| 6–17 years | 95 | 37.55 | 13 | 10.24 | 0 | 0.00 | 108 | 28.20 | 28 | 14.81 | 10 | 7.09 | 0 | 0.00 | 38 | 11.48 |
| 18–29 years | 69 | 27.27 | 23 | 18.11 | 0 | 0.00 | 92 | 24.02 | 56 | 29.63 | 21 | 14.89 | 0 | 0.00 | 77 | 23.26 |
| 30–39 years | 37 | 14.62 | 28 | 22.05 | 1 | 33.33 | 66 | 17.23 | 38 | 20.11 | 26 | 18.44 | 0 | 0.00 | 64 | 19.34 |
| 40–49 years | 15 | 5.93 | 18 | 14.17 | 0 | 0.00 | 33 | 8.62 | 12 | 6.35 | 23 | 16.31 | 0 | 0.00 | 35 | 10.57 |
| 50–59 years | 8 | 3.16 | 19 | 14.96 | 0 | 0.00 | 27 | 7.05 | 21 | 11.11 | 27 | 19.15 | 0 | 0.00 | 48 | 14.50 |
| 60–64 years | 3 | 1.19 | 8 | 6.30 | 0 | 0.00 | 11 | 2.87 | 6 | 3.17 | 15 | 10.64 | 0 | 0.00 | 21 | 6.34 |
| 65–79 years | 14 | 5.53 | 10 | 7.87 | 0 | 0.00 | 24 | 6.27 | 22 | 11.64 | 13 | 9.22 | 0 | 0.00 | 35 | 10.57 |
| 80+years | 0 | 0.00 | 3 | 2.36 | 0 | 0.00 | 3 | 0.78 | 3 | 1.59 | 2 | 1.42 | 0 | 0.00 | 5 | 1.51 |
| Not Specified | 12 | 4.74 | 5 | 3.94 | 2 | 66.67 | 19 | 4.96 | 2 | 1.06 | 4 | 2.84 | 1 | 100.00 | 7 | 2.11 |
| Total | 253 | 100.00 | 127 | 100.00 | 3 | 100.00 | 383 | 100.00 | 189 | 100.00 | 141 | 100.00 | 1 | 100.00 | 331 | 100.00 |
| Dose 2 | ||||||||||||||||
| <6 months | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 1 | 0.59 | 0 | 0.00 | 1 | 0.19 |
| 3–5 years | 2 | 0.27 | 0 | 0.00 | 0 | 0.00 | 2 | 0.21 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| 6–17 years | 305 | 40.99 | 37 | 18.05 | 1 | 14.29 | 343 | 35.88 | 83 | 23.12 | 11 | 6.51 | 0 | 0.00 | 94 | 17.67 |
| 18–29 years | 210 | 28.23 | 47 | 22.93 | 1 | 14.29 | 258 | 26.99 | 105 | 29.25 | 15 | 8.88 | 0 | 0.00 | 120 | 22.56 |
| 30–39 years | 84 | 11.29 | 34 | 16.59 | 0 | 0.00 | 118 | 12.34 | 62 | 17.27 | 32 | 18.93 | 0 | 0.00 | 94 | 17.67 |
| 40–49 years | 41 | 5.51 | 29 | 14.15 | 0 | 0.00 | 70 | 7.32 | 27 | 7.52 | 30 | 17.75 | 0 | 0.00 | 57 | 10.71 |
| 50–59 years | 17 | 2.28 | 26 | 12.68 | 0 | 0.00 | 43 | 4.50 | 32 | 8.91 | 31 | 18.34 | 0 | 0.00 | 63 | 11.84 |
| 60–64 years | 6 | 0.81 | 6 | 2.93 | 0 | 0.00 | 12 | 1.26 | 7 | 1.95 | 17 | 10.06 | 0 | 0.00 | 24 | 4.51 |
| 65–79 years | 21 | 2.82 | 14 | 6.83 | 0 | 0.00 | 35 | 3.66 | 28 | 7.80 | 19 | 11.24 | 1 | 25.00 | 48 | 9.02 |
| 80+ years | 3 | 0.40 | 0 | 0.00 | 0 | 0.00 | 3 | 0.31 | 6 | 1.67 | 3 | 1.78 | 0 | 0.00 | 9 | 1.69 |
| Not specified | 55 | 7.39 | 12 | 5.85 | 5 | 71.43 | 72 | 7.53 | 9 | 2.51 | 10 | 5.92 | 3 | 75.00 | 22 | 4.14 |
| Total | 744 | 100.00 | 205 | 100.00 | 7 | 100.00 | 956 | 100.00 | 359 | 100.00 | 169 | 100.00 | 4 | 100.00 | 532 | 100.00 |
| Dose 3 | ||||||||||||||||
| <6 months | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| 3–5 years | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| 6–17 years | 34 | 32.08 | 4 | 12.12 | 0 | 0.00 | 38 | 26.57 | 10 | 18.87 | 0 | 0.00 | 0 | 0.00 | 10 | 9.01 |
| 18–29 years | 29 | 27.36 | 9 | 27.27 | 0 | 0.00 | 38 | 26.57 | 10 | 18.87 | 5 | 8.93 | 0 | 0.00 | 15 | 13.51 |
| 30–39 years | 13 | 12.26 | 4 | 12.12 | 0 | 0.00 | 17 | 11.89 | 5 | 9.43 | 13 | 23.21 | 0 | 0.00 | 18 | 16.22 |
| 40–49 years | 2 | 1.89 | 5 | 15.15 | 0 | 0.00 | 7 | 4.90 | 7 | 13.21 | 17 | 30.36 | 0 | 0.00 | 24 | 21.62 |
| 50–59 years | 7 | 6.60 | 4 | 12.12 | 0 | 0.00 | 11 | 7.69 | 4 | 7.55 | 7 | 12.50 | 0 | 0.00 | 11 | 9.91 |
| 60–64 years | 2 | 1.89 | 3 | 9.09 | 0 | 0.00 | 5 | 3.50 | 1 | 1.89 | 6 | 10.71 | 0 | 0.00 | 7 | 6.31 |
| 65–79 years | 12 | 11.32 | 3 | 9.09 | 2 | 50.00 | 17 | 11.89 | 11 | 20.75 | 5 | 8.93 | 1 | 50.00 | 17 | 15.32 |
| 80+years | 2 | 1.89 | 0 | 0.00 | 0 | 0.00 | 2 | 1.40 | 3 | 5.66 | 1 | 1.79 | 0 | 0.00 | 4 | 3.60 |
| Not Specified | 5 | 4.72 | 1 | 3.03 | 2 | 50.00 | 8 | 5.59 | 2 | 3.77 | 2 | 3.57 | 1 | 50.00 | 5 | 4.50 |
| Total | 106 | 100.00 | 33 | 100.00 | 4 | 100.00 | 143 | 100.00 | 53 | 100.00 | 56 | 100.00 | 2 | 100.00 | 111 | 100.00 |
| Dose 4+ | ||||||||||||||||
| 60–64 years | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 2 | 100.00 | 0 | 0.00 | 2 | 100.00 |
| Total | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 2 | 100.00 | 0 | 0.00 | 2 | 100.00 |
| Unknown dose | ||||||||||||||||
| <6 months | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| 3–5 years | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| 6–17 years | 91 | 36.40 | 13 | 18.84 | 1 | 4.35 | 105 | 30.70 | 24 | 20.17 | 2 | 3.13 | 1 | 25.00 | 27 | 14.44 |
| 18–29 years | 96 | 38.40 | 23 | 33.33 | 0 | 0.00 | 119 | 34.80 | 46 | 38.66 | 10 | 15.63 | 0 | 0.00 | 56 | 29.95 |
| 30–39 years | 23 | 9.20 | 3 | 4.35 | 1 | 4.35 | 27 | 7.89 | 11 | 9.24 | 7 | 10.94 | 0 | 0.00 | 18 | 9.63 |
| 40–49 years | 10 | 4.00 | 7 | 10.14 | 0 | 0.00 | 17 | 4.97 | 10 | 8.40 | 13 | 20.31 | 0 | 0.00 | 23 | 12.30 |
| 50–59 years | 9 | 3.60 | 7 | 10.14 | 0 | 0.00 | 16 | 4.68 | 7 | 5.88 | 8 | 12.50 | 0 | 0.00 | 15 | 8.02 |
| 60–64 years | 2 | 0.80 | 4 | 5.80 | 2 | 8.70 | 8 | 2.34 | 6 | 5.04 | 3 | 4.69 | 0 | 0.00 | 9 | 4.81 |
| 65–79 years | 5 | 2.00 | 4 | 5.80 | 0 | 0.00 | 9 | 2.63 | 6 | 5.04 | 13 | 20.31 | 1 | 25.00 | 20 | 10.70 |
| 80+ years | 0 | 0.00 | 1 | 1.45 | 0 | 0.00 | 1 | 0.29 | 0 | 0.00 | 3 | 4.69 | 0 | 0.00 | 3 | 1.60 |
| Not Specified | 14 | 5.60 | 7 | 10.14 | 19 | 82.61 | 40 | 11.70 | 9 | 7.56 | 5 | 7.81 | 2 | 50.00 | 16 | 8.56 |
| Total | 250 | 100.00 | 69 | 100.00 | 23 | 100.00 | 342 | 100.00 | 119 | 100.00 | 64 | 100.00 | 4 | 100.00 | 187 | 100.00 |
| Grand Total | 1353 | 434 | 37 | 1824 | 720 | 432 | 11 | 1162 | ||||||||
Percentages per age group are presented.