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January 21, 1998

Boar Hunter's Endocarditis

Author Affiliations

Margaret A.WinkerMD, Senior EditorIndividualAuthorPhil B.FontanarosaMD, Senior EditorIndividualAuthor

JAMA. 1998;279(3):198. doi:10.1001/jama.279.3.193

To the Editor.—Actinobacillus is part of the HACEK group of gram-negative bacilli, and the species usually associated with endocarditis is Actinobacillus actinomycetemcomitans.1 Most other Actinobacillus species are commensal organisms in domestic animals. Human infection is rare and usually occurs as a result of traumatic inoculation. Actinobacillus suis and Actinobacillus hominis are difficult to differentiate.2 We report the first case, to our knowledge, of infective endocarditis caused by Actinobacillus organisms resembling A suis and A hominis. The patient's course was protracted because both the organism and the cardiac involvement were initially overlooked.

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