著者

鈴木 悠 鈴木 里香 鈴木 葉子 杉原 茂考 大谷 智子

出版者

一般社団法人 日本感染症学会

雑誌

感染症学雑誌 (ISSN:03875911)

巻号頁・発行日

vol.96, no.5, pp.198-203, 2022-09-20 (Released:2022-09-20)

参考文献数

17

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Typhoid fever is common in developing countries. Even in developed countries, however, small epidemics could occur, caused not only by overseas travelers, but also by chronic carriers. Detection of chronic carriers is difficult. A small number of patients become chronic carriers and act as a source of infection if only usual treatment is given, and not complete treatment. We report two cases of typhoid fever that occurred 30 months apart in members of a family with no history of overseas travel. We examined the molecular epidemiology and identified a chronic carrier in one of the family members with gallbladder stones, and treated the carrier with antibiotics and cholecystectomy. No case of typhoid fever has occurred in the family since. No guidelines recommend examination of the gallbladder for chronic carriers, although many reports indicate gallbladder abnormalities. The above suggests that follow-up examination of typhoid fever patients should include gallbladder examination for abnormalities, especially in non-epidemic countries.