Revista Brasileira De Parasitologia Veterinaria最新文献_第9页

First record of Lipeurus caponis (Psocodea: Ischnocera: Philopteridae) parasitizing domestic chickens (Gallus gallus domesticus) in Brazilian Amazon. 在巴西亚马逊河流域首次记录了肉鸡寄生（肉鸡科：肉鸡目：肉鸡科）。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025040

José Vicente Ferreira Neto, Marcelo Cutrim Moreira de Castro, Alexandre Levi Monteiro Santana, Ahana Maitra, Felipe Arley Costa Pessoa

{"title":"First record of Lipeurus caponis (Psocodea: Ischnocera: Philopteridae) parasitizing domestic chickens (Gallus gallus domesticus) in Brazilian Amazon.","authors":"José Vicente Ferreira Neto, Marcelo Cutrim Moreira de Castro, Alexandre Levi Monteiro Santana, Ahana Maitra, Felipe Arley Costa Pessoa","doi":"10.1590/S1984-29612025040","DOIUrl":"10.1590/S1984-29612025040","url":null,"abstract":"Lice are obligatory ectoparasites of birds and mammals, possessing mouthparts adapted for feeding on the blood and/or keratinized tissue of their hosts. Recording parasites that may cause economic and sanitary losses in the country's poultry industry is of utmost importance. For this reason, in the present study, we report the first record of Lipeurus caponis (Linnaeus, 1758) parasitizing domestic chickens in the Brazilian Amazon, specifically in the municipality of Autazes, state of Amazonas. The insect was collected using entomological forceps and deposited in a 1.5 ml microtube containing absolute ethanol on a rural property located on the banks of the Paraná Madeirinha River, where chickens are raised in a colonial system, coexisting with animals of different species and fed a diet based on whole corn grains. A male specimen of L. caponis was collected from the interscapular tract during the rainy season. Given this finding, we highlight the importance of entomological surveillance to prevent potential epizootic outbreaks and mitigate impacts on regional poultry production.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e004425"},"PeriodicalIF":1.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12498534/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145076390","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 record of Rickettsia bellii in Amblyomma varium and Amblyomma goeldii from the Eastern Amazon. 首次在亚马逊河东部的各种钝眼虫和goeldii钝眼虫中发现贝氏立克次体。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-09-01 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025043

Izabela Mesquita Araújo, Kelly Karoline Gomes do Nascimento, Mateus Borges Silva, Isis Abel, Ana Cristina Mendes-Oliveira, Bruna de Azevedo Baêta, Claudia Bezerra da Silva, Matheus Dias Cordeiro

{"title":"First record of Rickettsia bellii in Amblyomma varium and Amblyomma goeldii from the Eastern Amazon.","authors":"Izabela Mesquita Araújo, Kelly Karoline Gomes do Nascimento, Mateus Borges Silva, Isis Abel, Ana Cristina Mendes-Oliveira, Bruna de Azevedo Baêta, Claudia Bezerra da Silva, Matheus Dias Cordeiro","doi":"10.1590/S1984-29612025043","DOIUrl":"10.1590/S1984-29612025043","url":null,"abstract":"This study investigated the presence of Rickettsia spp., Ehrlichia spp., Anaplasma spp., and Borrelia spp. DNA in questing ticks collected from a forest fragment under constant anthropogenic pressure in the state of Pará, Brazil. The fragment was divided into three zones: interior, edge, and surrounding matrix. Ticks were collected in all zones using flannel drag sampling, flannel leggings, and CO2-baited traps. Nymphs and adults were morphologically identified using taxonomic keys, while larvae were subjected to molecular identification. DNA extracted from the ticks was tested for the target pathogens using polymerase chain reaction (PCR). In total, 561 questing ticks (525 larvae, 29 nymphs, and 7 adults) were collected, representing eight species: Amblyomma cajennense sensu stricto, Amblyomma calcaratum, Amblyomma geayi, Amblyomma goeldii, Amblyomma humerale, Amblyomma naponense, Amblyomma pacae, and Amblyomma varium. Rickettsia bellii was detected in one A. varium larva and one A. goeldii larva. All samples tested negative for Ehrlichia spp., Anaplasma spp., and Borrelia spp. This is the first report of R. bellii in A. varium and A. goeldii in Brazil.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e004025"},"PeriodicalIF":1.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12435583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975592","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 record of Ixodes luciae (Acari: Ixodidae) parasitizing Marmosops noctivagus (Didelphimorphia: Didelphidae) in South America. 在南美洲首次记录到露珠硬蚊（蜱螨亚纲：硬蚊科）寄生于夜绵鼠（双翅蝗科：双翅蝗科）。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025039

Marcelo Cutrim Moreira de Castro, José Albertino Rafael, Fernando de Castro Jacinavicius, Darci Moraes Barros-Battesti, Ricardo Bassini-Silva

引用次数: 0

A new Echimyidae (Mammalia, Rodentia) host of Amblyomma ovale Koch, 1844 in the eastern Brazilian Amazon, and a pathogen survey. 1844年巴西东部亚马逊地区卵圆圆钝足虫新寄主及病原菌调查。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025044

Darlison Chagas-de-Souza, Cláudia Regina Silva, Tássio Alves-Coêlho, Ricardo Bassini-Silva, Fernando de Castro Jacinavicius, Marcelo Bahia Labruna, Lúcio André Viana

{"title":"A new Echimyidae (Mammalia, Rodentia) host of Amblyomma ovale Koch, 1844 in the eastern Brazilian Amazon, and a pathogen survey.","authors":"Darlison Chagas-de-Souza, Cláudia Regina Silva, Tássio Alves-Coêlho, Ricardo Bassini-Silva, Fernando de Castro Jacinavicius, Marcelo Bahia Labruna, Lúcio André Viana","doi":"10.1590/S1984-29612025044","DOIUrl":"10.1590/S1984-29612025044","url":null,"abstract":"The genus Amblyomma has the largest number of tick species in the Neotropical region. Amblyomma ovale displays high ecological plasticity and can be found in different habitats and a variety of vertebrate hosts. Small mammals of the family Echimyidae have been identified as hosts for this species. However, studies investigating their role as hosts of these ticks in the Amazon region are lacking. The present study aims to record the parasitic association between A. ovale and a Echimyidae species (Proechimys cuvieri) in the extreme north of the Brazilian Amazon, providing information about the research of potentially pathogenic organisms. Eight nymphs were collected and subjected to taxonomic and molecular identification, and pathogen screening was performed on the family Anaplasmataceae agents and the genera Bartonella, Coxiella, Hepatozoon, Mycoplasma, and Rickettsia. All the ticks were identified morphologically and molecularly as A. ovale, but PCR assays for pathogen detection showed no positive results for the target genes. This is the first time that A. ovale has been associated with P. cuvieri.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e005125"},"PeriodicalIF":1.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12429336/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975618","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

Pseudoproleptus sp. Larvae (Nematoda: Cystidicolidae) parasitizing Macrobrachium amazonicum (Decapoda: Crustacea) in the state of Pará, Northern Brazil. 巴西北部帕尔<e:1>州寄生于亚马逊大臂虾（十足目：甲壳纲）的Pseudoproleptus sp.幼虫（线虫纲：囊虫科）。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025042

Patrick José Colares Cardoso, Liane Rodrigues Galvão de Cristo, Yan Rafael Gillet Santa Brigida, Elane Guerreiro Giese, Raul Henrique da Silva Pinheiro

{"title":"Pseudoproleptus sp. Larvae (Nematoda: Cystidicolidae) parasitizing Macrobrachium amazonicum (Decapoda: Crustacea) in the state of Pará, Northern Brazil.","authors":"Patrick José Colares Cardoso, Liane Rodrigues Galvão de Cristo, Yan Rafael Gillet Santa Brigida, Elane Guerreiro Giese, Raul Henrique da Silva Pinheiro","doi":"10.1590/S1984-29612025042","DOIUrl":"10.1590/S1984-29612025042","url":null,"abstract":"Third-stage larvae of a nematode species were found encapsulated in the cephalothorax of Macrobrachium amazonicum from the Guamá River, municipality of Belém, in the state of Pará, northern Brazil. Of a total of 120 specimens of M. amazonicum that were caught, 15.8% were parasitized with Cystidicolidae larvae that had morphological characteristics compatible with the genus Pseudoproleptus, such as rounded cephalic end, two pseudolips, slit-shaped buccal opening with four large submedian lips, vestibule with prostom and conical tail with a small mucron. The low presence of Pseudoproleptus larvae did not affect the growth of the shrimp, but these results cannot be generalized since the sampling was relatively low. Therefore, so the occurrence of this nematode could still negatively affect the growth and reproduction of these shrimp, leading to their death, which could directly affect their population dynamics and consumption by the Amazonian riverside population. Finally, we recommend more analyses with a greater sampling effort.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e002025"},"PeriodicalIF":1.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12429346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975558","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 parasitism in fecal samples from maned wolves (Chrysocyon brachyurus) and domestic dogs in the region of Serra da Canastra National Park, MG. 加拿大塞拉达卡纳斯特拉国家公园地区鬃狼（Chrysocyon brachyurus）和家犬粪便样本中寄生虫的流行情况。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025041

Daphnne Chelles Marins, Sávio Freire Bruno, Nathalie Costa da Cunha, Luciano Antunes Barros

{"title":"Prevalence of parasitism in fecal samples from maned wolves (Chrysocyon brachyurus) and domestic dogs in the region of Serra da Canastra National Park, MG.","authors":"Daphnne Chelles Marins, Sávio Freire Bruno, Nathalie Costa da Cunha, Luciano Antunes Barros","doi":"10.1590/S1984-29612025041","DOIUrl":"10.1590/S1984-29612025041","url":null,"abstract":"The Serra da Canastra National Park is a Conservation Unit where domestic dogs live near populations of maned wolves (Chrysocyon brachyurus). Recognizing the importance of parasitic diseases in endangered species such as the maned wolf, our research objective was to identify and determine the prevalence of parasites in fresh fecal samples collected in January and July 2021 from both canids that inhabit the region. The dog feces were collected after the administration of a 5% glycerin enema and evacuation, while the maned wolf feces was collected along the park's roads. For diagnosis, Sheather's and Hoffman, Pons and Janer (HPJ) parasitological techniques were applied. Among the dog samples, 22.5% (9/40) tested positive for at least one parasite species, mainly 44.4% (4/9) to hookworm eggs, 22.2% (2/9) to Toxocara sp. and 11.1% (1/9) to Cystoisospora sp. and trematode eggs. Among maned wolves, 75% (30/40) of samples were positive to capillariid eggs with 86.6% (26/30), followed by 16.6% (5/30) to Toxocara sp., 10% (3/30) to hookworm eggs and Dioctophyma renale, 6.6% (2/30) to Cystoisospora sp., trematode eggs and spirurid eggs, 3.3% (1/30) to Physaloptera sp. and acanthocephalan eggs.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e020224"},"PeriodicalIF":1.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12429337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975577","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

Interactions between endoparasites and anurans in the Nhecolândia Pantanal, Brazil. 巴西nhecolindia Pantanal地区内寄生虫与anurans的相互作用。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-30 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025034

Priscilla Soares Dos Santos, Isabela Caroline Oliveira da Silva, Maiara Cabrera Miguel, Rodney Murillo Couto, Luiz Eduardo Roland Tavares, Vanda Lúcia Ferreira, Fernando Paiva

{"title":"Interactions between endoparasites and anurans in the Nhecolândia Pantanal, Brazil.","authors":"Priscilla Soares Dos Santos, Isabela Caroline Oliveira da Silva, Maiara Cabrera Miguel, Rodney Murillo Couto, Luiz Eduardo Roland Tavares, Vanda Lúcia Ferreira, Fernando Paiva","doi":"10.1590/S1984-29612025034","DOIUrl":"10.1590/S1984-29612025034","url":null,"abstract":"We analyzed the distribution of endoparasites in five species of Hylidae frogs during their reproductive period, aiming to understand how the host's habitat influences the parasites. Five anuran species (Boana raniceps, Pithecopus azureus, Pseudis platensis, Scinax acuminatus and Scinax nasicus) were sampled in temporary and permanent ponds in Nhecolândia Pantanal, Brazil. A total of 276 individuals were collected, 43.84% of which were parasitized by endoparasites. Metacercariae of Diplostomidae gen. sp. were predominant, accounting for 85.94% of the total parasites found. Nematodes and cestodes were also identified, with nematodes representing 7.85% of the total parasites. Statistical analyses indicated that host body size was not a significant predictor of parasitism probability, although a weak negative correlation between host body size and parasite abundance was observed. Network analysis revealed a modular structure in the parasite-host interactions, with moderate connectivity. These results suggest that environmental factors, particularly those related to the aquatic habitats of anurans, play a fundamental role in shaping parasite community structure. This study provides important insights into the complex ecological interactions between anurans and their parasites, significantly contributing to the understanding of parasite-host interaction dynamics in the Pantanal ecosystem.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000425"},"PeriodicalIF":1.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12212064/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561623","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 survey of tick-borne pathogens in domestic dogs from a rural region within the buffer zone of a conservation unit in the Brazilian Caatinga biome. 巴西Caatinga生物群系保护区缓冲区内农村地区家犬蜱传病原体分子调查

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-30 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025037

Bruno Vinicios Silva de Araújo, Larissa Daniele Aires Oliveira do Carmo, Sthenia Santos Albano Amora, João Marcelo Azevedo de Paula Antunes, Francisco de Assis Leite Souza, Paulo Henrique Dantas Marinho, Juliana Fortes Vilarinho Braga

{"title":"Molecular survey of tick-borne pathogens in domestic dogs from a rural region within the buffer zone of a conservation unit in the Brazilian Caatinga biome.","authors":"Bruno Vinicios Silva de Araújo, Larissa Daniele Aires Oliveira do Carmo, Sthenia Santos Albano Amora, João Marcelo Azevedo de Paula Antunes, Francisco de Assis Leite Souza, Paulo Henrique Dantas Marinho, Juliana Fortes Vilarinho Braga","doi":"10.1590/S1984-29612025037","DOIUrl":"10.1590/S1984-29612025037","url":null,"abstract":"Although previous studies have identified Ehrlichia canis, Anaplasma platys, Babesia vogeli, and Hepatozoon canis in dogs in Northeastern Brazil, research on their presence within and around environmental conservation units remains scarce. The present study investigated the presence of tick-borne pathogens in domestic dogs in the rural region of Baraúna, within the buffer zone of the Furna Feia National Park (FFNP), an environmental conservation unit in the Caatinga biome of Rio Grande do Norte, northeastern Brazil. Blood samples from 52 dogs were collected to detect the presence of A. platys (16S rRNA), B. vogeli (18S rRNA), E. canis (16S rRNA), and H. canis (18S rRNA) DNA by Polymerase Chain Reaction (PCR). More than 90% of dogs were found to be infected with at least one pathogen, predominantly E. canis and H. canis. Co-infections (38.5%) and multi-infections with three (19.2%) and four (5.8%) pathogens were also frequent and diverse, underscoring the complexity of tick-borne diseases in this region. These findings highlight the epidemiological importance of dog-associated pathogens, and raise concerns regarding their potential transmission to wildlife within the conservation unit, as some of these pathogens have been previously described in wild mammalian species inhabiting the FFNP, including endangered species.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000925"},"PeriodicalIF":1.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12212063/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561624","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 hemoplasmas in domestic cats from different Brazilian regions. 巴西不同地区家猫血浆分子检测。

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/S1984-29612025035

Clara Morato Dias, Kamila Pinheiro Francisco, Gabriela Veiga Oliveira, João Vitor Dos Santos Alves da Silva, Eliz Oliveira Franco, Daniel Antônio Braga Lee, Dália Monique Machado Ribeiro, Maria Eduarda Chiaradia Furquim, Mayra Araguaia Pereira Figueiredo, Rosangela Zacarias Machado, Marcos Rogério André

{"title":"Molecular detection of hemoplasmas in domestic cats from different Brazilian regions.","authors":"Clara Morato Dias, Kamila Pinheiro Francisco, Gabriela Veiga Oliveira, João Vitor Dos Santos Alves da Silva, Eliz Oliveira Franco, Daniel Antônio Braga Lee, Dália Monique Machado Ribeiro, Maria Eduarda Chiaradia Furquim, Mayra Araguaia Pereira Figueiredo, Rosangela Zacarias Machado, Marcos Rogério André","doi":"10.1590/S1984-29612025035","DOIUrl":"10.1590/S1984-29612025035","url":null,"abstract":"Domestic cats can be parasitized by Mycoplasma haemofelis, 'Candidatus Mycoplasma haemominutum', and 'Candidatus Mycoplasma turicensis'. Although the molecular occurrence of hemoplasmas in domestic cats has been investigated in the five geographical regions of Brazil, no studies have been conducted in the states of Rondônia and Minas Gerais to date. The present work aimed to investigate the molecular occurrence of hemoplasmas in cats from four Brazilian states in the Northern, Central-Western and Southeastern regions of the country. Among 486 blood samples - 80 from Rondônia (RO), 100 from Goiás (GO), 155 from Minas Gerais (MG), and 151 from São Paulo (SP) - submitted to the endogenous gapdh gene-based PCR, 94.44% (459/486) were positive, of which 1.96% (9/459; 1 from RO, 2 from GO, 5 from MG, and 1 from SP) were positive in the qPCR assay for hemoplasmas based on the 16S rRNA gene. In the phylogenetic analyses, the obtained 16S rRNA (two genotypes) and 23S rRNA (three genotypes) sequences were positioned together with 'Candidatus Mycoplasma haemominutum'. The present study showed the first molecular evidence of infection by hemoplasmas in cats from MG and RO, contributing to a better understanding of the epidemiology of feline hemoplasmosis agents in Brazil.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e003925"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187081/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561626","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

Trypanosoma evansi in Brazil: first evidence of infection in equines from Northeast region. 巴西的伊文氏锥虫：东北地区马感染的首个证据。

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/S1984-29612025032

Jordeano Araujo Sousa, Leandro Macedo Miranda, Danielle Jordany Barros Coutinho, Thaliane França Costa, Sidilene Pereira Costa, Úrsula Silva Freitas, Francisco Borges Costa, Rosangela Zacarias Machado, Rita de Maria Seabra Nogueira, Andréa Pereira da Costa

{"title":"Trypanosoma evansi in Brazil: first evidence of infection in equines from Northeast region.","authors":"Jordeano Araujo Sousa, Leandro Macedo Miranda, Danielle Jordany Barros Coutinho, Thaliane França Costa, Sidilene Pereira Costa, Úrsula Silva Freitas, Francisco Borges Costa, Rosangela Zacarias Machado, Rita de Maria Seabra Nogueira, Andréa Pereira da Costa","doi":"10.1590/S1984-29612025032","DOIUrl":"10.1590/S1984-29612025032","url":null,"abstract":"The hemoprotozoan Trypanosoma evansi is a parasite that infects mammals, causing an infection known as trypanosomiasis. There is no report of T. evansi in horses in the State of Maranhão, highlighting the need to assess exposure and infection by the parasite and generate data for its monitoring. The objectives of this study were to identify T. evansi in blood samples from horses, investigate its occurrence in horses in this region, and analyze the associated risk factors. Three hundred blood samples were collected for parasitological (blood smear), serological (indirect enzyme-linked immunosorbent assay - ELISA), and molecular (polymerase chain reaction - PCR) diagnostic purposes. No trypomastigote forms of T. evansi were observed in the examined blood smears. Serological examined of 209 samples revealed that 33.01% (69/209) were positive for anti-T. evansi antibodies. No variable was identified as a risk factor. Among the 300 samples submitted to PCR, 1% (3/300) were positive, and sequencing showed 100% similarity with T. evansi species. The study identified exposure and infection of horses by T. evansi in Maranhão, expanding its geographic distribution in the country and highlighting the importance of periodic testing.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000125"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187158/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144498795","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