{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T03:09:50Z","timestamp":1771297790591,"version":"3.50.1"},"reference-count":49,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,4,12]],"date-time":"2024-04-12T00:00:00Z","timestamp":1712880000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Vet. Sci."],"abstract":"<jats:p><jats:italic>Brugia malayi<\/jats:italic> and <jats:italic>B. pahangi<\/jats:italic>, potential zoonotic pathogens transmitted by mosquitoes, are believed to primarily infect dogs and cats as reservoir hosts. Although previous studies have indicated nematode infections in lions, particularly in zoo environments where human contact with these reservoirs is possible, limited documentation exists regarding <jats:italic>Brugia<\/jats:italic> sp. infections in lions in Thailand. This study aims to investigate a case of <jats:italic>Brugia<\/jats:italic> infection in a lion from a zoo in Thailand. The blood sample was collected and examined from a female lion, using staining methods to morphologically identify microfilaria at the genus level. Subsequently, the PCR was employed targeting specific genes, including mitochondrial 12S rDNA, 18S rDNA, cytochrome oxidase I (COI) and <jats:italic>Wolbachia<\/jats:italic> surface protein (<jats:italic>wsp<\/jats:italic>), to confirm the species of the filarial nematode parasite. The genetic sequencing results revealed a high similarity (99\u2013100%) to <jats:italic>B. malayi<\/jats:italic> for the 12S rDNA, 18S rDNA, COI and <jats:italic>wsp<\/jats:italic> genes. Phylogenetic analysis based on nucleotide sequences from the 12S rDNA, 18S rDNA, COI and <jats:italic>wsp<\/jats:italic> genes showed that the sequences from this study belong to different clusters. This marks the inaugural documentation of molecular identification of <jats:italic>Brugia<\/jats:italic> infection in a lion, signifying that lions could function as reservoirs for this parasite and present a potential public health risk in the region. Our research underscores the effectiveness of molecular techniques and phylogenetic analysis in discerning and comprehending the evolution of filarial parasites. Additionally, it emphasizes the significance of these methods in enhancing the diagnosis, control, and prevention of zoonotic filarial nematode infections.<\/jats:p>","DOI":"10.3389\/fvets.2024.1376208","type":"journal-article","created":{"date-parts":[[2024,4,12]],"date-time":"2024-04-12T14:02:51Z","timestamp":1712930571000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Unveiling zoonotic threats: molecular identification of Brugia sp. infection in a lion"],"prefix":"10.3389","volume":"11","author":[{"given":"Witchuta","family":"Junsiri","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patchana","family":"Kamkong","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aunchisa","family":"Phojun","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Piyanan","family":"Taweethavonsawat","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2024,4,12]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"1189","DOI":"10.1016\/B978-0-443-06668-9.50106-X","article-title":"Zoonotic filariasis","volume":"2","author":"Eberhard","year":"2006","journal-title":"Trop Med Infect Dis"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"411","DOI":"10.1007\/s00436-020-06991-y","article-title":"Lymphatic filariasis in Asia: a systematic review and meta-analysis","volume":"120","author":"Bizhani","year":"2021","journal-title":"Parasitol Res"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"32","DOI":"10.3390\/tropicalmed2030032","article-title":"Lymphatic filariasis in mainland Southeast Asia: a systematic review and meta-analysis of prevalence and disease burden","volume":"2","author":"Dickson","year":"2017","journal-title":"Trop Med Infect Dis"},{"key":"ref4","doi-asserted-by":"publisher","first-page":"245","DOI":"10.1146\/annurev.en.09.010164.001333","article-title":"The epidemiology of filariasis due to Wuchereria bancrofti and Brugia malayi","volume":"9","author":"Edeson","year":"1964","journal-title":"Annu Rev Entomol"},{"key":"ref5","first-page":"585","article-title":"Brugia malayi in a naturally infected cat from Narathiwat province, southern Thailand","volume":"32","author":"Kanjanopas","year":"2001","journal-title":"Southeast Asian J Trop Med Public Health"},{"key":"ref6","doi-asserted-by":"publisher","first-page":"129","DOI":"10.1006\/mcpr.2001.0402","article-title":"PCR based method for identification of zoonostic Brugia malayi microfilariae in domestic cats","volume":"16","author":"Chansiri","year":"2002","journal-title":"Mol Cell Probes"},{"key":"ref7","first-page":"67","article-title":"Differentiation of Brugia malayi and Brugia pahangi by PCR-RFLP of ITS1 and ITS2","volume":"34","author":"Nuchprayoon","year":"2003","journal-title":"Southeast Asian J Trop Med Public Health"},{"key":"ref8","doi-asserted-by":"publisher","first-page":"117","DOI":"10.56808\/2985-1130.3196","article-title":"Surveillance of zoonotic Brugia pahangi in monastery cats, Samphran district, Nakhon Pathom, Thailand","volume":"52","author":"Rawangchue","year":"2022","journal-title":"Thai J Vet Med"},{"key":"ref9","doi-asserted-by":"publisher","first-page":"243","DOI":"10.1016\/S0065-308X(08)60530-8","article-title":"Brugian filariasis: epidemiological and experimental studies","volume":"15","author":"Denham","year":"1977","journal-title":"Adv Parasitol"},{"key":"ref10","doi-asserted-by":"publisher","first-page":"451","DOI":"10.1186\/s13071-015-1064-2","article-title":"Draft genome of Brugia pahangi: high similarity between B. 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