Academic research
2001 Anthrax Attacks
Centers for Disease Control and Prevention
Where this source supports the record
Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Historic crimes & investigations · 18 September–November 2001Open article references →
The 2001 Anthrax Letter Attacks
Brentwood mail-processing facility and national letter route · United States
Why editors use it hereCDC medical and epidemiologic record of cases, exposures, treatment, deaths, and response.
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Quick read
Beginning one week after September 11, letters containing Bacillus anthracis spores were mailed to news organizations and United States senators.
Reviewed 26 July 2026 -
Trigger and conditions
Letters postmarked 18 September reached media organizations; photo editor Robert Stevens developed inhalational anthrax and died on 5 October.
Reviewed 26 July 2026 -
Uncertainty
The twenty-two cases and five deaths are established.
Reviewed 26 July 2026 -
Why it matters
The attack turned a national logistics network into an exposure pathway and showed that intended targets are not the only people at risk.
Reviewed 26 July 2026
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Quick read