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A Detailed Overview of the US Anthrax Vaccine, Its Development, Mechanisms, and Role in National Biodefense
The US anthrax vaccine is a critical component of the nation’s biodefense strategy, designed to protect individuals against Bacillus anthracis, the bacterium responsible for anthrax. Anthrax is a severe infectious disease that can enter the body through skin contact, inhalation, ingestion, or injection. Among these forms, inhalational anthrax is the most dangerous, often fatal without rapid treatment. The anthrax vaccine provides essential protection for high-risk individuals, including military personnel, laboratory workers, and emergency responders.
The primary vaccine used in the United States is Anthrax Vaccine Adsorbed (AVA). It is a cell-free filtrate vaccine containing protective antigen (PA), one of the key components of the anthrax toxin. When administered, the vaccine stimulates the immune system to produce antibodies against PA, preventing the toxin from entering cells and causing tissue damage.
The anthrax vaccine schedule typically includes five doses administered over 18 months, followed by yearly boosters. This extended schedule ensures robust…