Side Effects and "Reactogenicity"
Anthrax vaccines are known for being "reactogenic," meaning they commonly cause minor physical reactions.
In 2026, data suggests that approximately 30% of recipients experience local reactions such as tenderness, redness, or swelling at the injection site. Systemic reactions like muscle aches, headache, or mild fever occur in about 5-10% of cases.
Interestingly, clinical data continues to show that women often report higher rates of local reactions than men. Severe allergic reactions (anaphylaxis) remain extremely rare, occurring in less than 1 per 100,000 doses.
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