Cyclospora cayetanensis is an apicomplexan protozoan and is one of the most common pathogens causing chronic diarrhea worldwide. Eight stool samples with diarrheal symptom out of 18 Korean residents who traveled to Nepal were obtained, and examined for 25 enteropathogens including 16 bacterial species, 5 viral species, and 4 protozoans in stool samples as causative agents of water-borne and food-borne disease. Only C. cayetanensis was detected by nested PCR, and 3 PCR-positive samples were sequenced to confirm species identification. However, the oocysts of C. cayetanensis in fecal samples could not be detected by direct microscopy of the stained sample. As far as we know, this is the first report of a group infection with C. cayetanensis from a traveler visiting Nepal, and the second report of a traveler’s diarrhea by C. cayetanensis imported in Korea.
Citations
Citations to this article as recorded by
Food Safety in Developing Countries: Common Foodborne and Waterborne Illnesses, Regulations, Organizational Structure, and Challenges of Food Safety in the Context of Nepal Deepak Subedi, Madhav Paudel, Sandesh Poudel, Niranjan Koirala Food Frontiers.2025; 6(1): 86. CrossRef
Imported parasitic diseases in the Republic of Korea: status and issues Jong-Yil Chai Journal of the Korean Medical Association.2025; 68(1): 52. CrossRef
Cyclospora cayetanensis: A Perspective (2020–2023) with Emphasis on Epidemiology and Detection Methods Sonia Almeria, Leonor Chacin-Bonilla, Jenny G. Maloney, Monica Santin Microorganisms.2023; 11(9): 2171. CrossRef
Waterborne transmission of protozoan parasites: a review of worldwide outbreaks – an update 2017–2022 Pavlina Bourli, Aida Vafae Eslahi, Ourania Tzoraki, Panagiotis Karanis Journal of Water and Health.2023; 21(10): 1421. CrossRef
Waterborne protozoan outbreaks: An update on the global, regional, and national prevalence from 2017 to 2020 and sources of contamination Jun-Yang Ma, Man-Yao Li, Ze-Zheng Qi, Ming Fu, Tian-Feng Sun, Hany M. Elsheikha, Wei Cong Science of The Total Environment.2022; 806: 150562. CrossRef
Review on Cyclosporiasis Outbreaks and Potential Molecular Markers for Tracing Back Investigations Junqiang Li, Feifei Xu, Md Robiul Karim, Longxian Zhang Foodborne Pathogens and Disease.2022; 19(12): 796. CrossRef
Majority of the imported malaria cases in Korea is attributed to Plasmodium falciparum and P. vivax infections, whereas P. malariae and P. ovale infections are very rare. Falciparum and ovale malaria are mostly imported from Africa, while most of the vivax malaria cases are imported from Southeast Asia. Here, we report 6 Korean imported ovale malaria cases (4 males and 2 females) who had visited in Africa during 2013-2016. These subjects were diagnosed with P. ovale based on microscopic findings, Plasmodium species-specific nested-PCR, and phylogenetic clade using 18S rRNA gene sequences. We identified 2 P. ovale subtypes, 1 P. ovale curtisi (classic type) and 5 P. ovale wallikeri (variant type). All patients were treated with chloroquine and primaquine, and no relapse or recrudescence was reported for 1 year after treatment. With increase of travelers to the countries where existing Plasmodium species, the risk of Plasmodium infection is also increasing. Molecular monitoring for imported malaria parasites should be rigorously and continuously performed to enable diagnosis and certification of Plasmodium spp.
Citations
Citations to this article as recorded by
Identification of Pharmacophore Groups with Antimalarial Potential in Flavonoids by QSAR-Based Virtual Screening Adriana de Oliveira Fernandes, Valéria Vieira Moura Paixão, Yria Jaine Andrade Santos, Eduardo Borba Alves, Ricardo Pereira Rodrigues, Daniela Aparecida Chagas-Paula, Aurélia Santos Faraoni, Rosana Casoti, Marcus Vinicius de Aragão Batista, Marcel Bermude Drugs and Drug Candidates.2025; 4(3): 33. CrossRef
Epidemiological Profile and Risk Factors for Malaria in Rural Communities Before the Operationalization of the Singrobo–Ahouaty Dam, Southern Côte d’Ivoire Taki Jean Deles Avenié, Kigbafori Dieudonné Silué, Négnorogo Guindo-Coulibaly, Naférima Koné, Sadikou Touré, Kouamé Laurent Valian, Kouassi Séraphin Kouadio, Alloua Marie Joelle Bédia, Boza Fulgence Déabo, Klotcholman Diabagaté, Christian Nsanzabana, Jean Tropical Medicine and Infectious Disease.2025; 10(7): 197. CrossRef
Missed Plasmodium ovale Infections Among Symptomatic Persons in Angola, Mozambique, and Ethiopia Colleen M Leonard, Jimee Hwang, Ashenafi Assefa, Rose Zulliger, Baltazar Candrinho, Pedro Rafael Dimbu, Abuchahama Saifodine, Mateusz Plucinski, Eric Rogier Open Forum Infectious Diseases.2022;[Epub] CrossRef
Elevated plasma α1-antichymotrypsin is a biomarker candidate for malaria patients Young Yil Bahk, Sang Bong Lee, Jong Bo Kim, Tong-Soo Kim, Sung-Jong Hong, Dong Min Kim, Sungkeun Lee BMB Reports.2022; 55(11): 571. CrossRef
Recent Spatial and Temporal Trends of Malaria in Korea Yeong Hoon Kim, Hye-Jin Ahn, Dongjae Kim, Sung-Jong Hong, Tong-Soo Kim, Ho-Woo Nam The Korean Journal of Parasitology.2021; 59(6): 585. CrossRef
First
Prev
