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Parasitological and sero-epidemiological surveys for human paragonimiasis were conducted in three provinces of Viet Nam. A total of 590 participants from two known endemic areas of human paragonimiasis (Sinho district of Laichau province and Lucyen district of Yenbai province) and from Dakrong district of Quangtri province where we recently found crab hosts heavily infected with Paragonimus westermani metacercariae. By multiple dot-ELISA screening, 28 (12.7%) out of 220 participants in Sinho district of Laichau province and 4 (3.3%) out of 120 participants in Lucyen district of Yenbai province were proven to be antibody-positive against the Paragonimus antigen. None of the 250 sera of the residents in Dakrong, Quangtri province, gave sero-positivity. Among a total of 32 sero-positive patients Paragonimus eggs were found in 6 cases. ITS2 sequences were successfully determined from a single Paragonimus egg from each patient. The results of homology search by BLAST and alignment clearly confirmed that Paragonimus eggs collected from 6 patients were all of Paragonimus heterotremus. The pathogenicity of P. westermani for human paragonimiasis in Viet Nam is still questionable and needs to be explored in the future.
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http://dx.doi.org/10.1016/j.parint.2011.09.001 | DOI Listing |
J Med Case Rep
August 2025
Department of Pediatrics, Pusan National University Children's Hospital, Pusan National University School of Medicine, 20 Geumo-Ro, Mulgeum-Eup, Yangsan, Gyeongsangnam-Do, Republic of Korea.
Introduction: Pulmonary paragonimiasis is a parasitic infection caused by lung flukes of the Paragonimus genus, primarily acquired by consuming raw or undercooked freshwater crustaceans. Despite improvements in sanitation, paragonimiasis, once widespread in Asia, remains a concern due to its potential for re-emergence in endemic regions such as Korea. The infection typically begins when metacercariae are ingested, excyst in the intestine, and migrate to the lungs, causing pleuritis and pneumonia.
View Article and Find Full Text PDFFood Waterborne Parasitol
September 2025
Department of Tropical Medicine and Parasitology and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.
, a zoonotic lung fluke, causes respiratory symptoms resembling tuberculosis. In Asia, human infections typically occur through the consumption of raw or marinated freshwater crabs or crayfish containing metacercariae. With increasing global food trade and occasional exposure during international travel, cases have been reported in non-endemic regions, raising significant food safety concerns.
View Article and Find Full Text PDFAm J Trop Med Hyg
September 2025
Department of Pediatrics, Public Health Clinical Center of Chengdu, Chengdu, People's Republic of China.
Paragonimiasis, a cause of pleuropulmonary disease, is a neglected etiology of pediatric pleural effusion. We retrospectively analyzed children with paragonimiasis-induced pleural effusion admitted to our center, aiming to summarize their diagnosis, treatment, and prognosis. A total of 103 children were included, with a mean age of 8.
View Article and Find Full Text PDFActa Parasitol
July 2025
Department of Parasitology, College of Public Health, University of the Philippines Manila, Manila, 1000, Philippines.
Purpose: Paragonimiasis is a neglected tropical disease, often mistaken with common respiratory diseases, has resulted in substantial global literature. However, there is a notable lack of comprehensive literature specifically focused on paragonimiasis in Southeast Asia (SEA). To address this gap, we conducted a bibliometric assessment to provide an overview of existing literature on this disease.
View Article and Find Full Text PDFBr J Radiol
August 2025
Department of Radiology, University of Missouri, Columbia, MO 65212, United States.
Neuroparasitic infections are caused by a variety of organisms that affect the central nervous system (CNS). Given the increasing rates of international travel, climate change, and immunosuppression, neuroparasitic diseases represent a major global health concern. Accurate diagnosis relies on non-invasive medical imaging combined with exposure history and laboratory testing.
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