Abstract
Mycobacterium vaccae is a rapidly growing mycobacterial species that was previously not considered a human pathogen. We report four cases of M. vaccae infection that occurred in the southern United States; one patient had cutaneous disease, and three patients had cavitary lung disease. Two of the three patients with pulmonary disease had a history of exposure to cattle. The conditions of all patients improved with therapy: the cutaneous infection responded to therapy with minocycline and trimethoprim-sulfamethoxazole, and the pulmonary infections responded to therapy with ciprofloxacin.
MeSH terms
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Aged
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Animals
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Anti-Bacterial Agents / therapeutic use
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Cattle
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Ciprofloxacin / therapeutic use
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Humans
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Male
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Middle Aged
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Minocycline / therapeutic use
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Mycobacterium / isolation & purification
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Mycobacterium / pathogenicity
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Mycobacterium Infections / diagnosis
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Mycobacterium Infections / drug therapy
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Mycobacterium Infections / etiology*
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Neoplasms / complications
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Pneumonia, Bacterial / diagnosis
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Pneumonia, Bacterial / drug therapy
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Pneumonia, Bacterial / etiology*
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Skin Diseases, Bacterial / diagnosis
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Skin Diseases, Bacterial / drug therapy
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Skin Diseases, Bacterial / etiology*
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Trimethoprim, Sulfamethoxazole Drug Combination / therapeutic use
Substances
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Anti-Bacterial Agents
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Ciprofloxacin
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Trimethoprim, Sulfamethoxazole Drug Combination
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Minocycline