著者

秋山 裕太郎 日向 佑樹 三河 貴裕 狩野 繁之

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.92, no.4, pp.538-541, 2018-07-20 (Released:2019-11-02)

参考文献数

11

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A 25-year-old Japanese female was admitted with fever, headache and nausea. She had recurrent fever every 48 hours and a CT scan revealed splenomegaly. An automated hematology analyzer displayed an error message of platelet aggregation. The laboratory technician checked a blood smear with a microscope and found Plasmodium parasites. Suspecting malaria infection, we reconfirmed her travel history and found that she had visited India and Nepal 8 months ago. The PCR test revealed that she was infected with Plasmodium vivax (P. vivax) malaria. The average incubation period is 2-4 weeks for P. vivax malaria, but some cases of P. vivax malaria show a much longer incubation period up to a maximum of about 12 months. When a patient has malaria-like symptoms, it is of utmost importance to confirm his/her travel history within at least the previous 1 year.