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If
a more passive infection is feared (such as by particles
spreading through a room, especially in a mail processing
plant), an air
purifier equipped with a HEPA filter can be
placed in a room or attached to a central air system to
remove any airborne spores. By keeping the air constantly
filtered, the spread of anthrax spores can be limited making
it less likely to affect multiple workers or family members.
An
anthrax vaccine is available that is believed to be 93%
effective at preventing all forms of anthrax infection.
It is recommended that all servicemen and women in the US
military get this vaccine. Veterinarians who are going to
work in countries with minimal veterinary regulation and
livestock health control may also consider being vaccinated.

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