{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T11:20:23Z","timestamp":1783336823023,"version":"3.54.6"},"reference-count":17,"publisher":"FapUNIFESP (SciELO)","issue":"3","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Bras. Parasitol. Vet."],"abstract":"<jats:p>Abstract Paragonimiasis is a zoonotic disease caused by lung flukes of the genus Paragonimus, which use freshwater snails and crustaceans as intermediate hosts and mammals as definitive hosts. Despite its public health importance, few studies have documented the distribution of this parasite in tropical regions of Mexico. In April 2024, a total of 180 freshwater crabs of the genus Pseudothelphusa were collected from five localities in Oaxaca State, Mexico. Metacercariae were observed in 47.2% of the crabs examined, with the highest mean intensity (18.46 cysts per crab) recorded in San Pedro Molinos locality. Morphologically, the metacercariae corresponded to Paragonimus mexicanus, although a distinct pink morphotype resembling P. caliensis was detected in San Juan Cacahuatepec locality. Molecular identification based on the 28S rRNA gene confirmed a 98.51% to 98.72% similarity with P. mexicanus (GenBank accession no. HM172619.1). This study provides new molecular records of P. mexicanus in freshwater crabs from previously unsampled localities in Oaxaca, expanding the known geographic distribution of the parasite in southern Mexico. Continuous surveillance and molecular characterization of Paragonimus species are essential to clarify their diversity and assess zoonotic risk in Neotropical freshwater systems.<\/jats:p>","DOI":"10.1590\/s1984-29612026019","type":"journal-article","created":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T11:00:23Z","timestamp":1783335623000},"source":"Crossref","is-referenced-by-count":0,"title":["Molecular detection of Paragonimus mexicanus in freshwater crabs: new records in Oaxaca, Mexico"],"prefix":"10.1590","volume":"35","author":[{"given":"Jaime","family":"Vargas-Arzola","sequence":"first","affiliation":[{"name":"Universidad Aut\u00f3noma Benito Ju\u00e1rez de Oaxaca,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ericel","family":"Hern\u00e1ndez-Garc\u00eda","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma Benito Ju\u00e1rez de Oaxaca,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan Pablo","family":"Merino-Villalobos","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma Benito Ju\u00e1rez de Oaxaca,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mario Alfredo","family":"Urbina-Mata","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma Benito Ju\u00e1rez de Oaxaca,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aristeo","family":"Segura-Salvador","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma Benito Ju\u00e1rez de Oaxaca,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9180-9005","authenticated-orcid":false,"given":"Nancy Gabriela","family":"Santos-Hern\u00e1ndez","sequence":"additional","affiliation":[{"name":"Universidad de Ciencias y Artes de Chiapas,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Ruiz Castillejos","sequence":"additional","affiliation":[{"name":"Universidad de Ciencias y Artes de Chiapas,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dolores Guadalupe","family":"Vidal-L\u00f3pez","sequence":"additional","affiliation":[{"name":"Universidad de Ciencias y Artes de Chiapas,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emilio Ismael","family":"Romero-Berny","sequence":"additional","affiliation":[{"name":"Universidad de Ciencias y Artes de Chiapas,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4100-8255","authenticated-orcid":false,"given":"Adriana","family":"Moreno-Rodr\u00edguez","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma Benito Ju\u00e1rez de Oaxaca,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Antonio De","family":"Fuentes-Vicente","sequence":"additional","affiliation":[{"name":"Universidad de Ciencias y Artes de Chiapas,  M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2026]]},"reference":[{"issue":"3","key":"ref1","first-page":"369","article-title":"Trends in paragonimiasis global research: bibliometric analysis of a neglected food-borne parasite","volume":"18","author":"Altun SK","year":"2023","journal-title":"Iran J Parasitol"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1016\/S0065-308X(08)60149-9","article-title":"Paragonimiasis and the genus Paragonimus.","volume":"42","author":"Blair D","year":"1999","journal-title":"Adv Parasitol"},{"issue":"2","key":"ref3","first-page":"45","article-title":"An\u00e1lisis del uso, conocimiento y percepci\u00f3n de la fauna silvestre en la comunidad ind\u00edgena \u201cLa Uni\u00f3n\u201d, etnia Pijao de San Antonio, Tolima, Colombia","volume":"23","author":"Bonilla-Liberato ED","year":"2025","journal-title":"Etnobiolog\u00eda"},{"issue":"2","key":"ref4","doi-asserted-by":"crossref","first-page":"189","DOI":"10.3347\/kjp.2018.56.2.189","article-title":"Hypolobocera guayaquilensis (Decapoda: Pseudothelphusidae): A New Crab Intermediate Host of Paragonimus mexicanus in Manab\u00ed Province, Ecuador","volume":"56","author":"Calvopina M","year":"2018","journal-title":"Korean J Parasitol"},{"issue":"1","key":"ref5","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/j.actatropica.2010.05.003","article-title":"Morphological and molecular characterization of Paragonimus westermani in northeastern India","volume":"116","author":"Devi KR","year":"2010","journal-title":"Acta Trop"},{"key":"ref6","doi-asserted-by":"crossref","DOI":"10.1016\/j.fawpar.2022.e00184","article-title":"Endemic Paragonimus kellicotti infections in animals and humans in USA and Canada: review and personal 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Evol"},{"issue":"2","key":"ref10","first-page":"147","article-title":"Sobre dos hospederos nuevos de Paragonimus mexicanus en M\u00e9xico","volume":"66","author":"Lamothe-Argumedo R","year":"1995","journal-title":"An Inst Biol UNAM Zool"},{"issue":"6","key":"ref11","doi-asserted-by":"crossref","first-page":"1125","DOI":"10.1111\/1755-0998.12093","article-title":"Detection of multiple species of human Paragonimus from Mexico using morphological data and molecular barcodes","volume":"13","author":"L\u00f3pez-Caballero J","year":"2013","journal-title":"Mol Ecol Resour"},{"key":"ref12","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3897\/zookeys.1117.85362","article-title":"Revision of the freshwater crabs of the genus Tehuana Rodr\u00edguez & Smalley in Smalley 1970 (Decapoda, Pseudothelphusidae), with the description of two new species","volume":"1117","author":"Moreno-Ju\u00e1rez EG","year":"2022","journal-title":"ZooKeys"},{"key":"ref13","series-title":"Encyclopedia of food safety.","first-page":"179","volume-title":"Helminth-Trematode: Paragonimus westermani and Paragonimus Species.","volume":"2","author":"Nawa Y","year":"2014"},{"issue":"7","key":"ref14","article-title":"Comparative genomics and transcriptomics of 4 Paragonimus species provide insights into lung fluke parasitism and pathogenesis","volume":"9","author":"Rosa BA","year":"2020","journal-title":"Gigascience"},{"issue":"4","key":"ref15","doi-asserted-by":"crossref","first-page":"175","DOI":"10.4046\/trd.2014.76.4.175","article-title":"A case of pleural paragonimiasis confused with tuberculous pleurisy","volume":"76","author":"Song J","year":"2014","journal-title":"Tuberc Respir Dis"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1016\/j.actatropica.2014.05.004","article-title":"Detection of Paragonimus mexicanus (Trematoda) metacercariae in crabs from Oaxaca, Mexico","volume":"137","author":"Vargas-Arzola J","year":"2014","journal-title":"Acta Trop"},{"key":"ref17","series-title":"Sistem\u00e1tica de los cangrejos de agua dulce de M\u00e9xico, Tribu Pseudothelphusini Ortmann, 1897 (Crustacea: Decapoda: Brachyura: Pseudothelphusidae). An\u00e1lisis filogen\u00e9tico, biogeogr\u00e1fico y descripci\u00f3n de especies nuevas","author":"Villalobos-Hiriart JL","year":"2005"}],"container-title":["Revista Brasileira de Parasitologia Veterin\u00e1ria"],"original-title":["Detec\u00e7\u00e3o molecular de Paragonimus mexicanus em caranguejos de \u00e1gua doce: novos registros em Oaxaca, M\u00e9xico"],"link":[{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_pdf&pid=S1984-29612026000300602&tlng=en","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T11:00:25Z","timestamp":1783335625000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S1984-29612026000300602&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":17,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026]]}},"alternative-id":["S1984-29612026000300602"],"URL":"https:\/\/doi.org\/10.1590\/s1984-29612026019","relation":{},"ISSN":["1984-2961","0103-846X"],"issn-type":[{"value":"1984-2961","type":"electronic"},{"value":"0103-846X","type":"print"}],"subject":[],"published":{"date-parts":[[2026]]},"article-number":"e002926"}}