Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand
A cercarial dermatitis outbreak occurred in Chana district, Songkhla Province, South Thailand, between August and October 2020. A total of 359 cases with cercarial dermatitis were confirmed with three cases of skin biopsy. The species of potential trematodes from infected snails were investigated, a...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2022-08-01
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| Series: | Evolutionary Systematics |
| Online Access: | https://evolsyst.pensoft.net/article/87670/download/pdf/ |
| _version_ | 1811310000719527936 |
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| author | Duangduen Krailas Suluck Namchote Jirayus Komsuwan Thanaporn Wongpim Kitja Apiraksena Matthias Glaubrecht Pichaya Sonthiporn Choopong Sansawang Sirirat Suwanrit |
| author_facet | Duangduen Krailas Suluck Namchote Jirayus Komsuwan Thanaporn Wongpim Kitja Apiraksena Matthias Glaubrecht Pichaya Sonthiporn Choopong Sansawang Sirirat Suwanrit |
| author_sort | Duangduen Krailas |
| collection | DOAJ |
| description | A cercarial dermatitis outbreak occurred in Chana district, Songkhla Province, South Thailand, between August and October 2020. A total of 359 cases with cercarial dermatitis were confirmed with three cases of skin biopsy. The species of potential trematodes from infected snails were investigated, and the prevalence of infestation with schistosomes was described. As part of our ongoing studies of trematode diversity in freshwater systems, using morphological traits and sequence data to differentiate species, this study aimed to provide insights into the parasite species that cause cercarial dermatitis in the outbreak area and improve our understanding of parasite species distribution. Snail samples were collected in December 2020 and September and October 2021. Five main areas of outbreaks were investigated, and snails were collected by scooping and examined for infection with cercariae. The cercariae were characterized on the basis of morphological features. We found two species of snails to be infected, viz. Indoplanorbis exustus and Bithynia siamensis siamensis, with infection rates of 2.05% (12/586) and 7.93% (23/290), respectively. Three species of trematodes were found in B. s. siamensis, viz. Gastrothylax crumenifer, Astiotrema monticellii, and Loxogenes liberum. Moreover, three species of trematodes were found in Indoplanorbis exustus, viz. Clinostomum giganticum, Echinostoma spiniferum, and Schistosoma indicum. The latter is a ruminant schistosome, which causes the outbreak of cercarial dermatitis in the area. They were genetically analyzed using the internal transcribed spacer subunit II region to confirm the species identity at generic and infrageneric levels. |
| first_indexed | 2024-04-13T09:52:04Z |
| format | Article |
| id | doaj.art-8bfb6310853d40cc881e0b517b689daa |
| institution | Directory Open Access Journal |
| issn | 2535-0730 |
| language | English |
| last_indexed | 2024-04-13T09:52:04Z |
| publishDate | 2022-08-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Evolutionary Systematics |
| spelling | doaj.art-8bfb6310853d40cc881e0b517b689daa2022-12-22T02:51:34ZengPensoft PublishersEvolutionary Systematics2535-07302022-08-016215117310.3897/evolsyst.6.8767087670Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South ThailandDuangduen Krailas0Suluck Namchote1Jirayus Komsuwan2Thanaporn Wongpim3Kitja Apiraksena4Matthias Glaubrecht5Pichaya Sonthiporn6Choopong Sansawang7Sirirat Suwanrit8Silpakorn UniversitySilpakorn UniversitySilpakorn UniversitySilpakorn UniversitySilpakorn UniversityUniversität HamburgDepartment of Disease Control, Ministry of Public HealthDepartment of Disease Control, Ministry of Public HealthDepartment of Disease Control, Ministry of Public HealthA cercarial dermatitis outbreak occurred in Chana district, Songkhla Province, South Thailand, between August and October 2020. A total of 359 cases with cercarial dermatitis were confirmed with three cases of skin biopsy. The species of potential trematodes from infected snails were investigated, and the prevalence of infestation with schistosomes was described. As part of our ongoing studies of trematode diversity in freshwater systems, using morphological traits and sequence data to differentiate species, this study aimed to provide insights into the parasite species that cause cercarial dermatitis in the outbreak area and improve our understanding of parasite species distribution. Snail samples were collected in December 2020 and September and October 2021. Five main areas of outbreaks were investigated, and snails were collected by scooping and examined for infection with cercariae. The cercariae were characterized on the basis of morphological features. We found two species of snails to be infected, viz. Indoplanorbis exustus and Bithynia siamensis siamensis, with infection rates of 2.05% (12/586) and 7.93% (23/290), respectively. Three species of trematodes were found in B. s. siamensis, viz. Gastrothylax crumenifer, Astiotrema monticellii, and Loxogenes liberum. Moreover, three species of trematodes were found in Indoplanorbis exustus, viz. Clinostomum giganticum, Echinostoma spiniferum, and Schistosoma indicum. The latter is a ruminant schistosome, which causes the outbreak of cercarial dermatitis in the area. They were genetically analyzed using the internal transcribed spacer subunit II region to confirm the species identity at generic and infrageneric levels.https://evolsyst.pensoft.net/article/87670/download/pdf/ |
| spellingShingle | Duangduen Krailas Suluck Namchote Jirayus Komsuwan Thanaporn Wongpim Kitja Apiraksena Matthias Glaubrecht Pichaya Sonthiporn Choopong Sansawang Sirirat Suwanrit Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand Evolutionary Systematics |
| title | Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand |
| title_full | Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand |
| title_fullStr | Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand |
| title_full_unstemmed | Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand |
| title_short | Cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host: schistosome in Chana, South Thailand |
| title_sort | cercarial dermatitis outbreak caused by ruminant parasite with intermediate snail host schistosome in chana south thailand |
| url | https://evolsyst.pensoft.net/article/87670/download/pdf/ |
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