Anthrax is a rare but serious illness caused by a spore-forming bacterium, Bacillus anthracis. Anthrax mainly affects livestock and wild game. Humans can become infected through direct or indirect contact with sick animals.
There's no evidence that anthrax is transmitted from person to person, but it's possible that anthrax skin lesions may be contagious through direct contact. Usually, anthrax bacteria enter the body through a wound in the skin. You can also become infected by eating contaminated meat or inhaling the spores.
Signs and symptoms, which depend on how you're infected, can range from skin sores to vomiting to shock. Prompt treatment with antibiotics can cure most anthrax infections. Inhaled anthrax is more difficult to treat and can be fatal.
June 10, 2014
- Wilson K. Clinical manifestations and diagnosis of anthrax. http://www.uptodate.com/home. Accessed Feb. 25, 2014.
- Hicks CW, et al. An overview of anthrax infection including the recently identified form of disease in injection drug users. Intensive Care Medicine. 2012;38:1092.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=4. Accessed Feb. 25, 2014.
- Anthrax. The Merck Manuals: The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/infectious_diseases/gram-positive_bacilli/anthrax.html. Accessed Feb. 25, 2014.
- Wilson K. Microbiology, pathogenesis, and epidemiology of anthrax. http://www.uptodate.com/home. Accessed Feb. 25, 2014.
- Grey MR, et al., eds. The Bioterrorism Sourcebook. New York, N.Y.: The McGraw-Hill Companies; 2006. http://accessmedicine.mhmedical.com/content.aspx?bookid=366&Sectionid=39825485. Accessed Feb. 26, 2014.
- Anthrax. National Institute of Allergy and Infectious Diseases. http://www.niaid.nih.gov/topics/anthrax/Pages/default.aspx#. Accessed Feb. 25, 2014.
- Hall JB, et al, eds. Principles of Critical Care. 3rd ed. New York, N.Y.: The McGraw-Hill Companies; 2005. http://accessmedicine.mhmedical.com/content.aspx?bookid=361&Sectionid=39866430. Accessed Feb. 26, 2014.
- Wilson K. Prevention of anthrax. http://www.uptodate.com/home. Accessed Feb. 26, 2014.
- Anthrax vaccine: What you need to know. Centers for Disease Control and Prevention. http://www.cdc.gov/vaccines/hcp/vis/vis-statements/anthrax.html. Accessed Feb. 25, 2014.
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