⚠️
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.
Smallpox (Acam2000)
SMALL8,768 total reports
Share
Manufacturers:
8,768
Total Reports
50
Deaths
1,788
Hospitalizations
4,670
ER Visits
140
Disabilities
About Smallpox (Acam2000)
Smallpox (Acam2000) has 8,768 reports in VAERS spanning from 1990 to 2026.
Of these reports, 50 mentioned death, 1,788 involved hospitalization, and 4,670 required emergency department visits.
This vaccine is manufactured by: Emergent BioSolutions, Pfizer / Wyeth, Unknown Manufacturer.
This vaccine accounts for 0.4% of all 1,983,260 reports in the VAERS database.
Reporting Rate
This vaccine averages 292 reports per year over 30 years of reporting (1990–2025).
Understanding These Numbers
•Reports don't prove causation. They represent temporal associations where someone experienced an event after vaccination.
•Background rates matter. Many conditions occur naturally and may coincidentally happen after vaccination.
•Reporting varies by vaccine. Newer vaccines or those in the news may have higher reporting rates due to increased awareness.
Most Reported Symptoms
Top Reporting States
Explore Further
Related Analysis
Data Source
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.