(91%) case-patients were either mail handlers or were exposed to worksites where
contaminated mail was processed or received.
- B. anthracis isolates from four
powder-containing envelopes, 17 specimens from patients, and 106 environmental samples
were indistinguishable by molecular subtyping.
- Illness and death occurred not only at
targeted worksites, but also along the path of mail and in other settings.