Mediastinal, subcutaneous and multiple muscular abscesses caused by group B streptococcus serotype VIII in a type 2 diabetes mellitus patient

Publication date: Available online 17 January 2018
Source:Journal of Infection and Chemotherapy
Author(s): Yuka Omura, Yoshiki Kusama, Noriko Takeuchi, Naruhiko Ishiwada
We report a case of mediastinal subcutaneous and multiple muscular abscesses caused by group B streptococcus serotype VIII in a type 2 diabetes mellitus patient. The patient arrived at the hospital with the chief complaint of immobility, and blood examination results suggested an acute infection and poorly controlled diabetes mellitus. Group B streptococcal bacteria were cultured from the patient's blood, and identified as serotype VIII upon further analysis. The patient recovered without any sequelae after percutaneous drainage, antibiotic therapy, and intensive glycemic control. Although the incidence of group B streptococcal infection in non-pregnant adults has recently increased in many developed countries, information on serotype VIII infection is quite limited. The reason is that serotype VIII group B streptococci are a Japan-specific serotype, and rarely cause invasive infections, even in Japan. Therefore, further surveillance and case reports should be documented in the future.



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