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The Journal of the Japanese Society for Clinical Microbiology |
Biblioraphy Information
| ArticleTitle |
A case of co-infection with Salmonella Typhi and Salmonella Paratyphi A |
| Language |
J |
| AuthorList |
Kyoko Kasai1), Shin Nihonyanagi1), Yuzuru Adachi1), Kazuhiro Uchida1), Masaki Nakamura1,2), Tatsuhiko Wada3), Yoko Takayama3), Yuhsaku Kanoh1,2) |
| Affiliation |
1) Department of Medical Laboratory, Kitasato University Hospital
2) Department of Laboratory Medicine, Kitasato University School of Medicine
3) Department of Infection Control and Prevention, Kitasato University Hospital |
| Publication |
J.J.C.M.: 35 (2), 150-156, 2025 |
| Received |
October 31, 2024 |
| Accepted |
February 10, 2025 |
| Abstract |
A 16-year-old woman, traveling from Bangladesh, was admitted to our hospital with a suspected imported infection. Salmonella Typhi and Salmonella Paratyphi A were isolated from two blood cultures collected on the first day of admission. Sub-cultures were done on BTB Agar, Sheep Blood Agar, Chocolate Agar, and DHL Agar plates and incubated overnight at 37°C. The first observation showed no obvious difference in all media and no recognition of a mixed infection. The next day, two types of colonies of different sizes and H2S production were observed on the DHL Agar plate. Biochemical identification and serotyping were performed for five colonies from Sheep Blood Agar, and S. Typhi and S. Paratyphi A were identified. When typhoid-like colonies are observed in cases of suspected typhoid or paratyphoid, it is important to perform identification of multiple colonies. |
| Keywords |
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