Revista Brasileira De Parasitologia Veterinaria最新文献_第10页

Molecular detection and characterization of Trichomonas spp. in wild birds in the Brazilian Pantanal. 巴西潘塔纳尔野生鸟类毛滴虫的分子检测与鉴定。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-20 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025033

Amanda Garcia Pereira, Sarah Raquel Jesus Santos Simões, Maitê Cardoso Coelho da Silva, Leticia Colovatti Mariano, Ana Cláudia Calchi, Amir Salvador Alabi Cordova, Tiago Valadares Ferreira, João Batista Pinho, Alan Fecchio, Ricardo Bassini-Silva, Ana Carolina Castro-Santiago, Jeffrey Bell, Rosangela Zacarias Machado, Marcos Rogério André, Karin Werther

{"title":"Molecular detection and characterization of Trichomonas spp. in wild birds in the Brazilian Pantanal.","authors":"Amanda Garcia Pereira, Sarah Raquel Jesus Santos Simões, Maitê Cardoso Coelho da Silva, Leticia Colovatti Mariano, Ana Cláudia Calchi, Amir Salvador Alabi Cordova, Tiago Valadares Ferreira, João Batista Pinho, Alan Fecchio, Ricardo Bassini-Silva, Ana Carolina Castro-Santiago, Jeffrey Bell, Rosangela Zacarias Machado, Marcos Rogério André, Karin Werther","doi":"10.1590/S1984-29612025033","DOIUrl":"10.1590/S1984-29612025033","url":null,"abstract":"Members of the family Trichomonadidae, particularly Trichomonas gallinae, are globally distributed avian parasites that primarily infect birds from the orders Columbiformes, Falconiformes, and Strigiformes. Although infections in Passeriformes are often subclinical, clinical cases have been reported. Transmission occurs through direct contact or indirectly via contaminated food or water, enabling infection across various avian orders, including Anseriformes, Falconiformes, Galliformes, Gruiformes, Passeriformes, Piciformes, Psittaciformes, and Strigiformes. This study aimed to assess the occurrence and genetic diversity of Trichomonas spp. in 246 wild birds captured in Poconé, Mato Grosso, located in the Brazilian Pantanal. Oropharyngeal swab samples were collected in July 2022 from birds belonging to six different orders. Following DNA extraction, molecular detection was performed targeting the ITS1/5.8S/ITS2 ribosomal region. Of the total samples, 107 (43.5%) tested positive, with high prevalence in Passeriformes (40.8%), Cuculiformes (75%), and Columbiformes (63.2%). Phylogenetic analysis using Bayesian inference placed the 18 obtained sequences, representing five distinct haplotypes, into three separate clades of T. gallinae. In conclusion, Trichomonas DNA was detected in asymptomatic birds from three different avian orders. The high infection prevalence and haplotype sharing among species highlight the widespread distribution and potential transmission of T. gallinae among wild birds in the Brazilian Pantanal.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e001825"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187080/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gastrointestinal parasites of captive and free-ranging wild animals in the state of Mato Grosso do Sul. 南马托格罗索州圈养和自由放养野生动物的胃肠道寄生虫。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025030

Angela Maria da Silva, Jordana Toqueto, Nayara Carvalho, Dirceu Guilherme de Souza Ramos, Andréia Lima Tomé Melo

{"title":"Gastrointestinal parasites of captive and free-ranging wild animals in the state of Mato Grosso do Sul.","authors":"Angela Maria da Silva, Jordana Toqueto, Nayara Carvalho, Dirceu Guilherme de Souza Ramos, Andréia Lima Tomé Melo","doi":"10.1590/S1984-29612025030","DOIUrl":"10.1590/S1984-29612025030","url":null,"abstract":"Wild animals are hosts for many species of parasites which act as opportunistic or primary agents of disease. This study investigated the presence of endoparasites in the gastrointestinal tracts of wild animals from the State of Mato Grosso do Sul in the Cerrado, Atlantic Forest, and Pantanal biomes. From October 2022 to June 2024, fecal samples were collected from wild animals at two locations: Wildlife Rehabilitation Center (CRAS) in Campo Grande and the Paragem Municipal Natural Park (PNMP) in Dourados. A total of 109 fecal samples were collected: 96 from CRAS and 13 from PNMP and techniques of flotation and sedimentation were used. The prevalence of parasitism was 51.04% and 23.07% in the captive and free-living animals, respectively. The parasites found were nematodes (Strongyloidea, Ancylostomatidae, Ascaridida, Ascaropsinae, Toxocara spp., Capillarinae, Trichuris spp., Ascaris suum, Oxyurida, and nematode larvae), cestodes (Dipylidium spp. and Spirometra spp.), trematodes (Paragonimus spp.), and protozoa (Entamoeba spp., Eimeria spp., Cystoisospora spp., and Coccidia). The highest prevalence was observed for helminths of the Strongyloidea and Ancylostomatidae, followed by Coccidia and Entamoeba spp.. We highlight the importance of such studies to better understand the circulation of etiological agents that may pose a risk to animal and human health.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000825"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164656/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence of Eimeria spp. in goats from northern Paraná, Brazil. 巴西巴拉那北部<e:1>山羊艾美耳虫流行病学。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025025

Carla Adriele Rodrigues, Jonas Correia de Araujo Júnior, Jorgeana Guadanhini Negrizolli, Maria Júlia Papin Filadelfo, Mateus Siqueira Pyles, Ana Carolina Cavalieri, Luiz Daniel de Barros, Fernando de Souza Rodrigues, João Luis Garcia

{"title":"Prevalence of Eimeria spp. in goats from northern Paraná, Brazil.","authors":"Carla Adriele Rodrigues, Jonas Correia de Araujo Júnior, Jorgeana Guadanhini Negrizolli, Maria Júlia Papin Filadelfo, Mateus Siqueira Pyles, Ana Carolina Cavalieri, Luiz Daniel de Barros, Fernando de Souza Rodrigues, João Luis Garcia","doi":"10.1590/S1984-29612025025","DOIUrl":"10.1590/S1984-29612025025","url":null,"abstract":"This study aimed to evaluate the presence, identify Eimeria species, and epidemiological aspects associated with the infection in goat herds in northern Paraná, Brazil. A total of 384 fecal samples were collected from goats of different breeds, ages, and sexes from eight farms. An epidemiological questionnaire about rearing system (semi-intensive or intensive), age of the animals (up to 6 months or over 6 months), and type of floor in the pen (dirt or slatted) was used to evaluate the epidemiological aspects associated with Eimeria spp. infection. The McMaster technique was used to count Eimeria spp. oocysts. After oocyst counting, the samples were separated for sporulation and species identification. In total, 82.3% (316/384) of the samples showed positive results. For OPG, 37% of the animals exhibited counts >1,000 OPG (max.63600 OPG), whereas 63% had counts <1,000 OPG. Animals from semi-intensive production systems had high oocyst counts (mean-2139 OPG). Goats raised in pens with slatted floors (mean-1158 OPG) have lower average oocyst counts than those raised in facilities with dirt floors (mean-2714 OPG). Eight Eimeria species were identified E. arloingi (23.9%), E. apsheronica (19.7%), E. ninakohlyakimovae (14.3%), E. alijevi (12%), E. caprina (10%), E. jolchijevi (9%), E. hirci (6.9%) and E. christenseni (4.2%). This study showed a high prevalence of Eimeria spp. in goats in northern Paraná, Brazil.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e022524"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164657/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gill infection in Macrodon ancylodon and Nebris microps caused by Lernanthropus sp. (Copepoda: Lernantropidae) in the Brazilian Amazon. 巴西亚马孙河流域长齿巨齿鲨和小内布蝇鳃感染的研究。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025029

Alessandra Epifanio Rodrigues, Gilmar da Silva Pantoja, Vanessa Mayara Souza Pamplona, José Ledamir Sindeaux Neto, Michele Velasco

{"title":"Gill infection in Macrodon ancylodon and Nebris microps caused by Lernanthropus sp. (Copepoda: Lernantropidae) in the Brazilian Amazon.","authors":"Alessandra Epifanio Rodrigues, Gilmar da Silva Pantoja, Vanessa Mayara Souza Pamplona, José Ledamir Sindeaux Neto, Michele Velasco","doi":"10.1590/S1984-29612025029","DOIUrl":"10.1590/S1984-29612025029","url":null,"abstract":"The research reports the occurrence and morphologically describes Lernanthropus sp. in the gills of sciaenid fish Macrodon ancylodon and Nebris microps. Specimens of the species were collected and examined. Ectoparasitic copepods with morphological characteristics inherent to the genus Lernanthropus were observed on the gills of the hosts and exhibited the same parasitic prevalence (25%). The copepod in M. ancylodon was male and did not exhibit a sac-like projection with eggs, with poorly developed antennae in the anterior region, a body measuring 4.33 mm in length, and a head distinct from the trunk measuring 0.96 mm (length) x 1.15 mm (width). While in N. micros, it was female, with a very evident sacuolar projection, with more developed and larger antennae than the specimen obtained in M. ancylodon, the anterior part of the trunk (2.1 mm) narrower than the posterior (3.2 mm) and a continuous plate to the trunk in an oval circular shape, with a sacuolar projection (4 mm). It should be noted that until now, there has been no report of the occurrence of this genus in the hosts studied in the state of Pará, which makes this work an important record for the knowledge of the ichthyosanitary status in this region.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e022424"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164654/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of therapeutic baths with Piper callosum essential oil against monogeneans of Colossoma macropomum: hematological and histopathological assessments. 花椒精油治疗浴对巨像单系虫的疗效：血液学和组织病理学评估。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025031

Carliane Maria Guimarães Alves, Raimundo Rosemiro Jesus Baia, Paulo Venicius Nascimento Santos, Amanda Mendes Pacheco, Marcela Nunes Videira, Francisco Célio Maia Chaves, Eliane Tie Oba Yoshioka, Marcos Tavares-Dias

{"title":"Efficacy of therapeutic baths with Piper callosum essential oil against monogeneans of Colossoma macropomum: hematological and histopathological assessments.","authors":"Carliane Maria Guimarães Alves, Raimundo Rosemiro Jesus Baia, Paulo Venicius Nascimento Santos, Amanda Mendes Pacheco, Marcela Nunes Videira, Francisco Célio Maia Chaves, Eliane Tie Oba Yoshioka, Marcos Tavares-Dias","doi":"10.1590/S1984-29612025031","DOIUrl":"10.1590/S1984-29612025031","url":null,"abstract":"As chemotherapeutants used in control and treatment of monogeniosis can cause environmental damage and risks to human health, there is need of compounds alternatives effective and safe to this parasitosis. Essential oils are herbal compounds with good degradability in nature and effectiveness, and resistance absence that can be alternatives to chemotherapeutants. This study aimed to report the first trial on the effects of therapeutic baths with Piper callosum essential oil anti-monogeneans in fish. Colossoma macropomum (tambaqui) were subjected to six baths with 100 mg/L of P. callosum essential oil, each lasting 20 minutes per day (short duration), with 24-hour intervals between baths. Therapeutic baths demonstrated efficacy of 83.6% against monogeneans of tambaqui. Fish submitted to therapeutic baths had reduction statistically significant in the plasma levels of total proteins, similar to the control group exposed to water from culture tank + 70% alcohol. The toxicity of P. callosum essential oil was low as there were no significant blood or histopathological changes that compromised gill function in the treated fish. Due to high efficacy of 100 mg/L of P. callosum essential oil in controlling monogenean infestations, six short therapeutic baths on alternate days may be recommended as anti-monogeneans strategy for tambaqui.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e002625"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164321/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular detection of Haemoproteus columbae Kruse, 1890 (Haemospororida: Haemoproteidae) in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) in southern Brazil. 巴西南部Columba livia Gmelin， 1789 （columbiforma: Columbidae）中columbius columbiae Kruse， 1890（血孢虫目：血孢虫科）的分子检测。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025027

Carolina Caetano Dos Santos, Natália Soares Martins, Nilséia Feijó da Silva, Julia Somavilla Lignon, Kauê Rodriguez Martins, Oluwagbemiga Ademola Dada, Rodrigo Casquero Cunha, Fábio Raphael Pascoti Bruhn, Diego Moscarelli Pinto, Felipe Geraldo Pappen, Carolina Silveira Mascarenhas, Nara Amélia da Rosa Farias

{"title":"Molecular detection of Haemoproteus columbae Kruse, 1890 (Haemospororida: Haemoproteidae) in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) in southern Brazil.","authors":"Carolina Caetano Dos Santos, Natália Soares Martins, Nilséia Feijó da Silva, Julia Somavilla Lignon, Kauê Rodriguez Martins, Oluwagbemiga Ademola Dada, Rodrigo Casquero Cunha, Fábio Raphael Pascoti Bruhn, Diego Moscarelli Pinto, Felipe Geraldo Pappen, Carolina Silveira Mascarenhas, Nara Amélia da Rosa Farias","doi":"10.1590/S1984-29612025027","DOIUrl":"10.1590/S1984-29612025027","url":null,"abstract":"The aim of this study is to describe the molecular detection of Haemoproteus columbae Kruse, 1890 (Haemospororida: Haemoproteidae) in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) in southern Brazil, and to determine the prevalence of the haemosporidian by analyzing the infection in relation to birds' age, sex, and place of origin. Blood samples were collected from 57 birds captured in the municipalities of Pelotas and Rio Grande, in the state of Rio Grande do Sul, Brazil, between May and November 2022. Microscopic examination and Polymerase Chain Reaction (PCR) based on the mitochondrial cytochrome b gene (CytB) revealed that the prevalence of the haemosporidian was 92.98% (53/57). In the sequencing analysis, the samples showed 98.87-99.08% similarity to the species H. columbae and a new lineage was recorded. No differences in infection rates were observed in relation to age, sex, or place of origin of the birds.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e018524"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164655/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anti-Neospora caninum and anti-Toxoplasma gondii antibodies in cattle intended for human consumption in the State of Espírito Santo, Brazil: prevalence and associated factors. 巴西圣州Espírito供人食用的牛中抗犬新孢子虫和抗刚地弓形虫抗体：流行率和相关因素。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-02 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025026

Samira Pereira Batista, Jordania Oliveira Silva, Carolina Magri Ferraz, João Pedro Barbosa de Assis, Gabriel Augusto Marques Rossi, Luiza Guilherme Daleprani, Fernando Luiz Tobias, Thais Ferreira Feitosa, Fábio Ribeiro Braga, Vinícius Longo Ribeiro Vilela

{"title":"Anti-Neospora caninum and anti-Toxoplasma gondii antibodies in cattle intended for human consumption in the State of Espírito Santo, Brazil: prevalence and associated factors.","authors":"Samira Pereira Batista, Jordania Oliveira Silva, Carolina Magri Ferraz, João Pedro Barbosa de Assis, Gabriel Augusto Marques Rossi, Luiza Guilherme Daleprani, Fernando Luiz Tobias, Thais Ferreira Feitosa, Fábio Ribeiro Braga, Vinícius Longo Ribeiro Vilela","doi":"10.1590/S1984-29612025026","DOIUrl":"10.1590/S1984-29612025026","url":null,"abstract":"The objective of this study was to describe the seroprevalence and factors associated with Neospora caninum and Toxoplasma gondii infections in cattle in the state of Espírito Santo, Brazil. Serum samples were collected from 600 slaughtered cattle and destined intended for consumption, originating from 27 municipalities. The samples were analyzed using the Indirect Immunofluorescence Test, with cut-off points for anti-N. caninum antibodies at 1:200 and for anti-T. gondii antibodies at 1:64. Positive samples were titrated until negative. Epidemiological questionnaires were applied to gather information about the properties and herds. The seroprevalence for N. caninum was 13.2% (79/600), with antibody titers ranging from 1:200 to 1:6400, and for T. gondii it was 12.5% (75/600), with titers ranging from 1:64 to 1:1024. In the multivariate analysis, the factor associated with N. caninum infection was a history of abortion (OR 6.483; CI 6.082-6.884; p < 0.01), and for T. gondii, contact with cats (OR 7.683; CI 7.172-8194; p < 0.005). The seroprevalences for N. caninum and T. gondii in cattle slaughtered for human consumption in Espírito Santo are significant, with a history of abortion being a factor associated with N. caninum infection and contact with cats associated with T. gondii infection.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e001225"},"PeriodicalIF":1.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12143166/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144227336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous infestations in dogs by different tick species (Acari: Ixodidae) in two areas of the Western Brazilian Amazon. 巴西亚马逊西部两个地区不同蜱类（蜱螨：伊蚊科）对狗的同时感染。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-02 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025036

Ivaneide Nunes da Costa, Marcos Valério Garcia, Vanessa Paiva Dos Santos, Natalia Vitória Coelho Costa, Angélica Lorena Pereira Mendes Carioca, Renato Andreotti, Jansen Fernandes Medeiros, André de Abreu Rangel Aguirre

{"title":"Simultaneous infestations in dogs by different tick species (Acari: Ixodidae) in two areas of the Western Brazilian Amazon.","authors":"Ivaneide Nunes da Costa, Marcos Valério Garcia, Vanessa Paiva Dos Santos, Natalia Vitória Coelho Costa, Angélica Lorena Pereira Mendes Carioca, Renato Andreotti, Jansen Fernandes Medeiros, André de Abreu Rangel Aguirre","doi":"10.1590/S1984-29612025036","DOIUrl":"10.1590/S1984-29612025036","url":null,"abstract":"Although there are reports on many species of ticks infesting dogs, including from the Amazon region, simultaneous infestations by different species are poorly discussed in the literature. Therefore, this study aimed to report simultaneous infestations in dogs by different species of ticks, involving up to six species, in two areas of the western Brazilian Amazon, specifically in the border region between the states of Rondônia and Amazonas, in northern Brazil. Ticks were collected between 2021 and 2023 from dogs on private properties surrounding two conservation units: Municipal Natural Park of Porto Velho (NP), and Mapinguari National Park (MNP). The following species were identified: Amblyomma ovale, Amblyomma scalpturatum, Amblyomma latepunctatum, Amblyomma oblongogutattum, Amblyomma coelebs, Amblyomma naponense and Rhipicephalus sanguineus s.l.. Among the 342 dogs sampled, 184 were from the area around the NP and 158 were from the area around the MNP. A total of 34 dogs (9.9%) exhibited simultaneous tick species infestations, ranging from two to six tick species; 26 dogs (16.5%) with simultaneous infestations were from the MNP area, and eight dogs (4.3%) were from the NP area. This study is the first to report the simultaneous occurrence of four, five or six tick species on individual dogs.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e020324"},"PeriodicalIF":1.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12143165/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144227339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First molecular detection of Sarcocystis arctica (Apicomplexa: Sarcocystidae) infecting crab-eating raccoon (Procyon cancrivorus) in Brazil. 在巴西首次检测到感染食蟹浣熊的北极肉囊菌（顶端复合体：肉囊菌科）。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-02 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025038

Julia Somavilla Lignon, Diego Moscarelli Pinto, Silvia Gonzalez Monteiro, Kauê Rodriguez Martins, Rodrigo Casquero Cunha, Diago Dutra Lima, Luíse Nunes Bonneau de Albuquerque, Camila Gonçalves da Silveira, Stanrley Victor Nascimento da Silva, Oluwagbemiga Ademola Dada, Matthew Ajani Ayoola, Felipe Geraldo Pappen, Fábio Raphael Pascoti Bruhn

{"title":"First molecular detection of Sarcocystis arctica (Apicomplexa: Sarcocystidae) infecting crab-eating raccoon (Procyon cancrivorus) in Brazil.","authors":"Julia Somavilla Lignon, Diego Moscarelli Pinto, Silvia Gonzalez Monteiro, Kauê Rodriguez Martins, Rodrigo Casquero Cunha, Diago Dutra Lima, Luíse Nunes Bonneau de Albuquerque, Camila Gonçalves da Silveira, Stanrley Victor Nascimento da Silva, Oluwagbemiga Ademola Dada, Matthew Ajani Ayoola, Felipe Geraldo Pappen, Fábio Raphael Pascoti Bruhn","doi":"10.1590/S1984-29612025038","DOIUrl":"10.1590/S1984-29612025038","url":null,"abstract":"The crab-eating raccoon (Procyon cancrivorus) is a wild carnivore with a broad geographic distribution, randing from Costa Rica to South America. This species remains understudied, particularly regarding Sarcocystis spp. infections. This study aimed to report the first molecular detection of Sarcocystis arctica in P. cancrivorus. The roadkill specimen, recovered from the highway of Pedro Osório, Rio Grande do Sul, Brazil, was subjected to necropsy. Tissues samples, bone marrow and blood were collected, and their genomic DNA was extracted. PCR amplification targeting 18S rRNA, COX1 and 28S genes, genetic sequencing and phylogenetic analysis confirmed the presence of S. arctica DNA in cardiac muscle samples. Molecular characterization showed 98.62-99.6% identity to sequences of this species deposited in GenBank. We report the first documentation of S. arctica infection in a P. cancrivorus heart sample. While species within the genus Procyon serve as definitive and intermediate hosts for other Sarcocystis species, it is uncertain whether P. cancrivorus acts as an aberrant host or plays a regular role in the protozoan life cycle, particularly in muscle tissue. Additionally, its impact on P. cancrivorus populations is still unknown, highlighting the need for further studies.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e021024"},"PeriodicalIF":1.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12143164/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144227337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First report of immature stages of Ixodes bocatorensis (Ixodida: Ixodidae) on small mammals in the Maracanã Environmental Protection Area, São Luís, Maranhão, Brazil. 巴西maranh<e:1> o s<s:1> o Luís Maracanã环境保护区小兽类中未成熟阶段肉毒伊蚊（伊蚊目：伊蚊科）首次报道。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-02 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025028

Francielma Chaves Sousa Gonçalves, Alana Dos Santos Cardoso, Ana Karoline Sousa Mendes Simas, Débora Ellen Pinheiro Silva, Clauberth César Alves Carvalho, Davi Viegas Melo, Andréa Pereira da Costa, Rita de Maria Seabra Nogueira, Thiago Fernandes Martins, Marcelo Bahia Labruna, Francisco Borges Costa

{"title":"First report of immature stages of Ixodes bocatorensis (Ixodida: Ixodidae) on small mammals in the Maracanã Environmental Protection Area, São Luís, Maranhão, Brazil.","authors":"Francielma Chaves Sousa Gonçalves, Alana Dos Santos Cardoso, Ana Karoline Sousa Mendes Simas, Débora Ellen Pinheiro Silva, Clauberth César Alves Carvalho, Davi Viegas Melo, Andréa Pereira da Costa, Rita de Maria Seabra Nogueira, Thiago Fernandes Martins, Marcelo Bahia Labruna, Francisco Borges Costa","doi":"10.1590/S1984-29612025028","DOIUrl":"10.1590/S1984-29612025028","url":null,"abstract":"Research into ticks that feed on small mammals is important because they can be vectors of pathogenic bioagents that infect animals and humans. In this study, small mammals were captured in the Maracanã Environmental Protection Area, in the eastern Amazon biome (São Luís, Maranhão), and were visually inspected to detect the presence of ectoparasites. Overall, 10 (48%) out of 21 small mammals were infested by ticks, as follows: three Didelphis marsupialis (30 Amblyomma sp. larvae, and 2 Ixodes sp. nymphs); three Monodelphis domestica (three Ixodes sp. nymphs) and four Dasyprocta sp. rodents (three Amblyomma sp. larvae, three Ixodes sp. nymphs and 16 Ixodes sp. larvae), making a total of 57 tick specimens. Two of the collected nymphs were molecularly identified as Ixodes bocatorensis, based on mitochondrial 16S rRNA gene partial sequences. Since all eight Ixodes sp. nymphs collected in this study presented the same morphotype, the molecular identification of two specimens as I. bocatorensis supports the identification of all collected nymphs as belonging to this same tick species. This study provides host records for immature stages of I. bocatorensis for the first time. Additionally, a brief morphological description of the I. bocatorensis nymph is provided.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e003425"},"PeriodicalIF":1.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12140632/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144227340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0