A Case of Plasmodium ovale wallikeri Infection in a Chinese Worker Returning from West Africa.
- Author:
Yuchun LI
1
;
Guangze WANG
;
Dingwei SUN
;
Feng MENG
;
Shigan LIN
;
Ximin HU
;
Shanqing WANG
Author Information
1. Parasitic Diseases Department, Hainan Provincial Center for Disease Control and Prevention, Haikou, Hainan 570203, P. R. China. wangsqkevin@hotmail.com
- Publication Type:Case Reports ; Research Support, Non-U.S. Gov't
- Keywords:
Plasmodium ovale wallikeri;
imported malaria;
case report;
China
- MeSH:
Adult;
Azure Stains;
Base Sequence;
China;
DNA, Protozoan/chemistry/genetics;
DNA, Ribosomal/chemistry/genetics;
Ghana;
Humans;
Malaria/*diagnosis/parasitology;
Male;
Molecular Sequence Data;
Phylogeny;
Plasmodium ovale/*classification/genetics/isolation & purification;
Polymerase Chain Reaction;
Recurrence;
Sequence Analysis, DNA;
Travel
- From:The Korean Journal of Parasitology
2013;51(5):557-562
- CountryRepublic of Korea
- Language:English
-
Abstract:
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.
