ArticleActa parasitologica2022
Morphological and Molecular Characterization of Paragonimus skrjabini Complex from Yunnan, China: A Brief Report.
Article in Acta parasitologica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Atypical subcutaneous nodule-type paragonimiasis in 3 children: case series.Frontiers in surgery · 2026Article
- Article
- Analysis of clinical characteristics of 213 clinically diagnosed pediatric patients with paragonimiasis from Yunnan, China.BMC infectious diseases · 2025Article
- General overview of the current status of human foodborne trematodiasis.Parasitology · 2022Review
- Morphological and Molecular Characterization ofJournal of tropical medicine · 2021Article
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8 authors.
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Abstract
purposeTo perform environmental sampling and molecular identification of Paragonimus in endemic regions, which may help in minimizing transmission among humans.
methodsMountain crabs from the genus Potamiscus were collected and the encysted metacercariae were extracted and subjected to morphological identification, followed by animal inoculation in Sprague-Dawley (SD) rats. After 112 days of infection, animals were killed and adult worms were extracted from lungs and muscles. The morphology of adult worms was characterized by microscopy and molecular identification was done by polymerase chain reaction, followed by sequencing of cox1 and ITS2 genes. Phylogenetic analysis was done by maximum parsimony method.
resultsA total of 447 crabs were captured from the streams of Tongchang Town, Jinping County, Yunnan Province, China. The infection rate was found to be 41% (186 out of 447 crabs). The metacercariae of Paragonimus skrjabini was identified by the characteristics round or spherical encysted form measuring 410 to 460 × 400 to 460 µm. After animal infection in SD rats, adults were presumptively confirmed to be P. skrjabini, which was also confirmed by gene amplification and sequence analysis of cox1 and ITS2 regions. Paragonimus skrjabini clustered with previously reported P. skrjabini from Yunnan and Vietnam. The confidence values of their branches were > 95%. Phylogenetic analysis of the ITS2 region revealed two distinct clusters with distinct geographical grouping. Phylogenetic analysis with the combined data sets reiterated the geographical grouping with P. skrjabini from Yunnan clustering with strains from Vietnam.
conclusionMetacercariae of P. skrjabini was discovered in freshwater crabs in Yunnan province, China, and the strains were phylogenetically related to P. skrjabini from Vietnam.
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