Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.
Colorado (CO) has 41,161 adverse event reports in VAERS, representing 2.1% of all reports nationwide.
Of these, 256 mentioned death, 1,955 involved hospitalization, and 6,530 required emergency department visits.
With an estimated population of 5,839,000, Colorado has approximately 704.9 reports per 100,000 residents.
| Vaccine | Reports | Deaths | Hospitalizations |
|---|---|---|---|
| COVID-19 | 24,450 | 176 | 1,364 |
| Flu (Trivalent) | 2,301 | 11 | 140 |
| Shingles (Zostavax) | 2,150 | 5 | 63 |
| MMR | 1,523 | 3 | 76 |
| Chickenpox (Varivax) | 1,397 | 3 | 34 |
| DTaP | 1,341 | 9 | 66 |
| Pneumococcal (PPV23) | 1,338 | 3 | 72 |
| COVID-19 (Bivalent) | 1,203 | 7 | 36 |
| Hepatitis B | 1,189 | 16 | 79 |
| Flu (Quadrivalent) | 1,108 | 7 | 34 |
| Tdap | 1,076 | 3 | 34 |
| Hepatitis A | 1,068 | 6 | 42 |
| Hib | 1,031 | 26 | 102 |
| Polio (IPV) | 811 | 6 | 49 |
| Meningococcal (MenACWY) | 577 | 3 | 20 |
| Pneumococcal (PCV13) | 567 | 7 | 39 |
| Polio (OPV) | 513 | 21 | 57 |
| HPV (Gardasil 9) | 500 | 0 | 19 |
| MMRV (ProQuad) | 468 | 2 | 5 |
| Unknown Vaccine | 456 | 4 | 21 |
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.