During the 1976 Fort Dix H1N1 swine flu vaccination program, roughly 48 million people, about 25% of the US population, were vaccinated within 10 months.
Notes on verification
The vaccination figures (~45-48 million, ~21-25% of US population) are well corroborated by CDC, NIH/PMC, and historyofvaccines.org sources. However, the '10 months' timeframe appears inaccurate — the program actually ran from October to mid-December 1976 (about 2.5 months) before being halted due to Guillain-Barré syndrome concerns, not 10 months. This discrepancy lowers overall confidence in the claim as stated. [tier=silver indep_score=0.925 clusters=2 claim_tier=notable | framework convergence=partial on CDC's own historical accounting of the 1976 National Influenza Immunization Program (upstreams: CDC historical archives, National Influenza Immunization Program records) — publishers independent, evidence may not be | kind=empirical eligibility=high]
Sources
- Influenza Historic Timeline 1930 and Beyond | Pandemic Influenza (Flu) | CDC (seed:health_and_medicine)
- https://www.historyofvaccines.org/history/swine-flu-vaccine/overview (corroboration)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3391896/ (corroboration)