Anthrax is an acute infectious disease caused by the spore-forming bacterium Bacillus anthracis. Anthrax most commonly occurs in hoofed mammals and can also infect humans.
Signs and Symptoms:
What is the treatment for exposure to Anthrax?
In persons exposed to anthrax, infection can be prevented with antibiotic treatment.
Early antibiotic treatment of anthrax is essential–delay lessens chances for survival. Anthrax usually is susceptible to penicillin, doxycycline, and fluoroquinolones.
An anthrax vaccine also can prevent infection. Vaccination against anthrax is not recommended for the general public to prevent disease
How should I handle a suspicious package?
· Do not shake or empty the contents of any suspicious package or envelope.
· Do not carry the package or envelope, show it to others or allow others to examine it.
· Put the package or envelope down on a stable surface; do not sniff, touch, taste, or look closely at it
· Alert others in the area about the suspicious package or envelope. Leave the area, close any doors,
· If at work, notify a supervisor, a security officer, or a law enforcement official. If at home, contact the
· If possible, create a list of persons who were in the room or area when this suspicious letter or package
Anthrax FAQs for Healthcare Workers and Providers
How is anthrax diagnosed?
Anthrax is diagnosed by isolating B. anthracis from the blood, skin lesions, or respiratory secretions or by measuring specific antibodies in the blood of persons with suspected cases.
In patients with symptoms compatible with anthrax, providers should confirm the diagnosis by obtaining the appropriate laboratory specimens based on the clinical form of anthrax that is suspected (i.e., cutaneous, inhalational, or gastrointestinal).
What are the standard diagnostic tests used by the laboratories?
Presumptive identification to identify to genus level (Bacillus family of organisms) requires Gram stain and colony identification.
Presumptive identification to identify to species level (B. anthracis) requires tests for motility, lysis by gamma phage, capsule production and visualization, hemolysis, wet mount and malachite green staining for spores.
Confirmatory identification of B. anthracis carried out by CDC may include phage lysis, capsular staining, and direct fluorescent antibody (DFA) testing on capsule antigen and cell wall polysaccharide.
When is a nasal swab indicated?
Nasal swabs and screening may assist in epidemiologic investigations, but should not be relied upon as a guide for prophylaxis or treatment. Epidemiologic investigation in response to threats of exposure to B. anthracis may employ nasal swabs of potentially exposed persons as an adjunct to environmental sampling to determine the extent of exposure.
Is there an X-ray for detecting anthrax?
A chest X-ray can be used to help diagnose inhalation anthrax in people who have symptoms. It is not useful as a test for determining anthrax exposure or for people with no symptoms.
Can someone get anthrax from contaminated mail, equipment or clothing?
In the mail handling processing sites, B. anthracis spores may be aerosolized during the operation and maintenance of high-speed, mail sorting machines potentially exposing workers. In addition, these spores could get into heating, ventilating, or air conditioning (HVAC) systems.
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