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KMID : 0425120130510050557
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Parasites, Hosts and Diseases
2013 Volume.51 No. 5 p.557 ~ p.562
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A Case of Plasmodium ovale wallikeri Infection in a Chinese Worker Returning from West Africa
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Li Yuchun
Wang Guangze
Sun Dingwei
Meng Feng
Lin Shigan
Hu Ximin
Wang Shanqing
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Abstract
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In contrast to the gradual reduction in the number of locally transmitted malaria cases in China, the number of imported malaria cases has been increasing since 2008. Here, we report a case of a 39-year-old Chinese man who acquired Plasmodium ovale wallikeri infection while staying in Ghana, West Africa for 6 months in 2012. Microscopic examinations of Giemsa-stained thin and thick blood smears indicated Plasmodium vivax infection. However, the results of rapid diagnostic tests, which were conducted 3 times, were not in agreement with P. vivax. To further check the diagnosis, standard PCR analysis of the small-subunit rRNA gene was conducted, based on which a phylogeny tree was constructed. The results of gene sequencing indicated that this malaria is a variant of P. ovale (P. ovale wallikeri). The infection in this patient was not a new infection, but a relapse of the infection from the one that he had contracted in West Africa.
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KEYWORD
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Plasmodium ovale wallikeri, imported malaria, case report, China
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