Table 3.
Self-Reported Adverse Effects Associated With First and Second Doses of BNT162b2 Vaccine
| First dose | Second dose | |
|---|---|---|
| Overall | 1924 | 1881 |
| Participants who had at least 1 adverse effect | 549 (28.80) | 956 (54.60) |
| Serious adverse effect | 2 (0.12) | 4 (0.48) |
| Participants who needed to take medication for vaccine adverse effect | 153 (8.22) | 563 (53.72) |
| Pain in injection site | 1107 (57.54) | 1232 (69.84) |
| Fatigue | 371 (19.28) | 772 (43.94) |
| Malaise | 204 (10.60) | 523 (30,09) |
| Headache | 281 (14.60) | 585 (33.58) |
| Joint pain | 207 (10.76) | 535 (30.55) |
| Muscle pain | 381 (19.80) | 706 (40.30) |
| Chills and tremors | 151 (7.85) | 439 (25.22) |
| Fever | 33 (1.72) | 271 (15.59) |
| Diarrhea | 40 (2.08) | 107 (6.69) |
| Nausea | 65 (3.38) | 183 (10.53) |
| Vomiting | 7 (0.36) | 29 (1.67) |
| Abdominal pain | 39 (2.03) | 116 (6.69) |
| Lymph node swelling | 61 (3.17) | 190 (10.94) |
| Insomnia | 87 (4.52) | 184 (10.55) |
Values are reported as number (percentage).