🦠microbiology review

Injection anthrax

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Injection anthrax is a serious bacterial infection caused by Bacillus anthracis, introduced into the body via injection. It presents rapidly and can lead to severe systemic symptoms.

5 Must Know Facts For Your Next Test

  1. Injection anthrax is often associated with injecting drug users.
  2. Symptoms include severe swelling, redness at the injection site, and systemic signs like fever and shock.
  3. It differs from cutaneous anthrax as it bypasses the skin barrier directly into deeper tissues or bloodstream.
  4. Diagnosis may involve blood cultures, PCR tests, and imaging to detect infection spread.
  5. Early treatment with antibiotics such as ciprofloxacin or doxycycline is crucial for survival.

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