[A case of Streptococcus suis endocarditis, probably bovine-transmitted, complicated by pulmonary embolism and spondylitis].

Kazuyoshi Ishigaki, Akira Nakamura, Sentaro Iwabuchi, Satoshi Kodera, Kenji Ooe, Yasushi Kataoka, Yuka Aida

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Streptococcus suis, a major global porcine pathogen, is an emerging zoonosis in Southeast Asia that triggered a 2005 outbreak in China. S. suis causes meningitis, sepsis, and endocarditis in both pigs and humans and involves significant mortality. We report the case of a previously healthy 50-year-old dairy farmer who developed S. suis type 2 endocarditis complicated by pulmonary embolism and spondylitis. He experienced a high fever, chills, fatigue, and worsening low back pain in the 6 weeks prior to admission. On physical examination, he had lumbar spine tenderness and weakness of the left leg. Blood culture identified penicillin-sensitive S. suis type 2. Echocardiography showed vegetation on the tricuspid valve, and magnetic resonance imaging (MRI) showed signs of spondylitis. The man reported sudden chest pain several days after admission, which computed tomography (CT) showed what was diagnosed as a septic pulmonary embolism. He was treated with penicillin G for 4 weeks and gentamicin for the first 2 weeks, followed by 2 weeks of oral amoxicillin, after which his symptoms gradually improved. The infection source was probably his dairy herd, since calves often bit his fingers while feeding and S. suis was found in their oral mucus. Over 400 cases of human S. suis infection have been reported globally, but this is, to our knowledge, the first known case of bovine transmission. All of Japan's 8 other cases involved occupational swine exposure, 5 of whom had injuries to their fingers. This emerging situation should be made known to all possibly involved in unprotected direct contact with swine and cattle, particularly when the skin could be compromised by cuts or abrasions.

本文言語English
ページ(範囲)544-548
ページ数5
ジャーナルKansenshōgaku zasshi. The Journal of the Japanese Association for Infectious Diseases
83
5
DOI
出版ステータスPublished - 2009
外部発表はい

ASJC Scopus subject areas

  • 医学一般

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