Revista Brasileira De Parasitologia Veterinaria最新文献

Molecular analysis of zoonotic pathogens in free-ranging six-banded armadillos (Euphractus sexcinctus) from the Brazilian semiarid region. 巴西半干旱区自由放养六带犰狳（Euphractus sexcinctus）人畜共患病原体的分子分析。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-01-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025002

Ilanna Vanessa Pristo de Medeiros Oliveira, José Artur Brilhante Bezerra, Gabriela Hémylin Ferreira Moura, Ana Carolina Yamakawa, Mariana Guimarães Nilsson, Jéssica da Silva Ferreira, Amanda Haisi, Felipe Fornazari, Hélio Langoni, João Marcelo Azevedo de Paula Antunes

{"title":"Molecular analysis of zoonotic pathogens in free-ranging six-banded armadillos (Euphractus sexcinctus) from the Brazilian semiarid region.","authors":"Ilanna Vanessa Pristo de Medeiros Oliveira, José Artur Brilhante Bezerra, Gabriela Hémylin Ferreira Moura, Ana Carolina Yamakawa, Mariana Guimarães Nilsson, Jéssica da Silva Ferreira, Amanda Haisi, Felipe Fornazari, Hélio Langoni, João Marcelo Azevedo de Paula Antunes","doi":"10.1590/S1984-29612025002","DOIUrl":"10.1590/S1984-29612025002","url":null,"abstract":"This study investigated infection by Leishmania spp., Leptospira spp., Toxoplasma gondii, and Trypanosoma cruzi in six-banded armadillos (Euphractus sexcinctus) from the semiarid region of northeastern Brazil. Twenty specimens of E. sexcinctus were captured alive by wildlife veterinarians from their natural habitats in different locations. The animals were euthanized following induction of anesthesia, and different biological samples were collected. Infection with four pathogens was subsequently evaluated: Leishmania infection was investigated by spleen and liver Polymerase Chain Reaction (PCR); Leptospira spp. infection was evaluated by kidney PCR and serologically by microscopic agglutination test; T. gondii infection was assessed by PCR of the heart, lung, and spleen; and T. cruzi infection was investigated by heart and whole blood PCR and hemoculture. All tests presented negative results apart from whole blood PCR to detect T. cruzi, which was positive in one of the 20 animals tested and confirmed by genetic sequencing. It is important to highlight that this is the first study comprising a molecular investigation of different zoonotic pathogens in six-banded armadillos, and the findings reported here bring new and important knowledge regarding zoonotic diseases in this species.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 1","pages":"e017124"},"PeriodicalIF":1.3,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756859/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014614","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

Antibody dynamics in dogs submitted to different canine visceral leishmaniasis treatment protocols. 不同犬内脏利什曼病治疗方案中犬的抗体动态。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-01-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025001

Eliesse Pereira Costa, Gisele Vaz Aguirre Samoel, Gilneia da Rosa, Vanessa Osmari, Michelli Lopes de Souza, Luís Felipe Dias Lopes, Fernanda Silveira Flôres Vogel, Sônia de Avila Botton, Luís Antônio Sangioni

{"title":"Antibody dynamics in dogs submitted to different canine visceral leishmaniasis treatment protocols.","authors":"Eliesse Pereira Costa, Gisele Vaz Aguirre Samoel, Gilneia da Rosa, Vanessa Osmari, Michelli Lopes de Souza, Luís Felipe Dias Lopes, Fernanda Silveira Flôres Vogel, Sônia de Avila Botton, Luís Antônio Sangioni","doi":"10.1590/S1984-29612025001","DOIUrl":"10.1590/S1984-29612025001","url":null,"abstract":"This study evaluated dynamics of antibodies in dogs treated for canine visceral leishmaniasis (CVL). Twenty-one dogs naturally infected by Leishmania spp. were grouped based on the treatment protocol: G1 (n=4) received allopurinol; G2 (n=10) allopurinol with miltefosine; and G3 (n=7) allopurinol, miltefosine and Leish-Tec® vaccine. The dogs were monitored monthly for a period of one year. To verify serum antibody titers, an indirect immunofluorescence reaction was performed. We found that dogs from G1 and G2 had lower clinical scores and antibody titers, when compared to the parameters evaluated in pre-treatment; however, clinical relapses were observed in three animals. In G3, clinical scores were lower than pre-treatment; however, they presented relatively stable antibody titers and no clinical relapse was observed. All animals submitted to the evaluated treatment protocols showed relative improvement in clinical signs. Furthermore, the immune response of animals must be considered, given the challenges of parasitic loads in infections. Therefore, it is necessary to complement the methods of clinical and therapeutic monitoring of dogs with CVL in order to establish the risk of transmissibility of the agent in infected and treated dogs.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 1","pages":"e014824"},"PeriodicalIF":1.3,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756860/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014613","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

Morphological and histopathological description of Calyptospora sp. parasitism in Cichla monoculus Spix, 1929 (Osteichthyes, Cichlidae) from the lake region of Pracuúba-Amapá, Brazil. 巴西Pracuúba-Amapá湖盆区稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚稚

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024078

Eloiza Sarmento Amoras, Jhonata Eduard, Maria do Perpétuo Socorro Progene, José Francisco Berrêdo Reis da Silva, Marcela Nunes Videira, José Ledamir Sindeaux-Neto, Michele Velasco

{"title":"Morphological and histopathological description of Calyptospora sp. parasitism in Cichla monoculus Spix, 1929 (Osteichthyes, Cichlidae) from the lake region of Pracuúba-Amapá, Brazil.","authors":"Eloiza Sarmento Amoras, Jhonata Eduard, Maria do Perpétuo Socorro Progene, José Francisco Berrêdo Reis da Silva, Marcela Nunes Videira, José Ledamir Sindeaux-Neto, Michele Velasco","doi":"10.1590/S1984-29612024078","DOIUrl":"10.1590/S1984-29612024078","url":null,"abstract":"The tucunaré (Cichla sp.) is an Amazonian fish that is heavily commercialized in the state of Amapá, and it can be infected by a variety of parasites, including coccidia of the genus Calyptospora, which are identified at the genus level by analyzing the structures that comprise its morphology. This study aimed to describe the morphology and histopathology of Calyptospora sp. parasitism in Cichla monoculus Spix, 1929 in the Municipality of Pracuúba, Amapá, Brazil. Nine specimens were acquired from the Lake Sacaizal by artisanal fishermen and transported in isothermal boxes to the Integrated Morpho-molecular and Technologies Laboratory (LIMT) of the Federal Rural University of the Amazon in Belém, Pará, where they were necropsied. Fragments of the liver were removed to visualize cysts using light microscopy and processed for scanning electron microscopy and histology analyses. The analysis revealed that 66.6% of the fish examined had clusters of oocysts in the hepatic region, resulting in the formation of melanomacrophagic centers. The oocysts were sphere-like, with a diameter of 21 µm. They contained four pyriform sporocysts, 8.7 µm long and 4.9 µm wide, with sporopods in the posterior region.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e012324"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957358","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

Nematode-bacteria interactions in bovine parasitic otitis. 牛寄生虫中耳炎中线虫-细菌的相互作用。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024081

Makoto Enoki Caracciolo, Erika Verissimo Villela, Leandro Dos Santos Machado, Maria Lúcia Barreto, Ana Cláudia de Paula Rosa, Eduardo José Lopes-Torres

{"title":"Nematode-bacteria interactions in bovine parasitic otitis.","authors":"Makoto Enoki Caracciolo, Erika Verissimo Villela, Leandro Dos Santos Machado, Maria Lúcia Barreto, Ana Cláudia de Paula Rosa, Eduardo José Lopes-Torres","doi":"10.1590/S1984-29612024081","DOIUrl":"10.1590/S1984-29612024081","url":null,"abstract":"Bovine parasitic otitis poses challenges in diagnosis, treatment and involves various agents, such as bacteria, fungi, mites, and nematodes. This study focused on the nematodes and bacteria isolated from the auditory canals of dairy cattle. A total of twenty samples were collected from dairy cattle in two states of Brazil. The results showed that Metarhabditis freitasi and M. costai nematodes were identified in 75% of samples. Bacterial species from the ear, identified via mass spectrometry, revealed that different strains were present in 65% of the cattle. Mycoplasma spp. were identified in 45% of samples through molecular techniques. Gram-negative bacteria and Mycoplasma spp. were exclusively found in nematode-infected cattle. Furthermore, the bacteria exhibited resistance to multiple antimicrobial classes, and demonstrating multiresistance. Electron microscopy revealed biofilm aggregates on the cuticle of Metarhabditis spp., suggesting a potential role of these nematodes in bacterial migration and interaction with nervous tissue. Thirteen bacterial strains demonstrated biofilm formation ability, indicating their potential pathogenic role. This research highlights the persistent and complex nature of parasitic otitis, emphasizing the significant role of nematode-bacteria associations in its pathogenicity. The presence of resistant strains and biofilm formation underscores the challenges in managing the diagnosis and treatment of bovine parasitic otitis.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e019024"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957360","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

Cymbopogon citratus showing nematicidal activity against Heligmosomoides polygyrus bakeri. 柑桔Cymbopogon citratus对多回线虫具有杀线虫活性。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024079

Viviane Souza Campos, Letícia Oliveira da Rocha, Hassan Jerdy Leandro, Teresa Pontes, Fábio Conceição de Oliveira, Eulógio Carlos Queiroz de Carvalho, Leonardo Siqueira Glória, Clóvis de Paula Santos

{"title":"Cymbopogon citratus showing nematicidal activity against Heligmosomoides polygyrus bakeri.","authors":"Viviane Souza Campos, Letícia Oliveira da Rocha, Hassan Jerdy Leandro, Teresa Pontes, Fábio Conceição de Oliveira, Eulógio Carlos Queiroz de Carvalho, Leonardo Siqueira Glória, Clóvis de Paula Santos","doi":"10.1590/S1984-29612024079","DOIUrl":"10.1590/S1984-29612024079","url":null,"abstract":"This paper describes a novel in vivo study of Cymbopogon citratus (lemon grass) to assess its anthelmintic activity. To this end, C57BL/6 mice were separated into three groups: G1: uninfected; G2: negative control infected with Heligmosomoides polygyrus bakeri and administered with 3% dimethyl sulfoxide (DMSO); and G3: infected with H. polygyrus bakeri and treated with C. citratus aqueous extract (50mg/kg). The extract and H. polygyrus bakeri were administered via gavage and the anatomo-histopathological evaluation of the animals took place after necropsy and organ removal. In addition, the number of eggs per gram of feces (epg) and of adult parasites in the small intestine of each animal, as well as blood cell counts, were assessed. The in vivo assay revealed a reduction in the epg (54%), number of adult nematodes (89%), number of eosinophils, and intestinal lesions in mice treated with C. citratus. These results suggest that the crude aqueous extract of C. citratus at the dose evaluated here has anthelmintic and possibly anti-inflammatory properties, given its effectiveness against gastrointestinal H. polygyrus bakeri nematodes and the recovery of damaged tissues. Therefore, this plant shows potential to control gastrointestinal nematodes.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e014224"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756821/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957354","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

Hematological and biochemical parameters correlated to hemorheology in Canine Monocytic Ehrlichiosis. 犬单核细胞埃利希体病血液学和生化参数与血液流变学的关系。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024076

Saulo Pereira Cardoso, Adenilda Cristina Honorio-França, Luana Paula Sales Silva, Maria Clara Bianchini Neves, Arlyson Sousa Ferreira, Arleana do Bom Parto Ferreira Almeida, Eduardo Luzía França, Luciano Nakazato, Valéria Régia Franco Sousa

{"title":"Hematological and biochemical parameters correlated to hemorheology in Canine Monocytic Ehrlichiosis.","authors":"Saulo Pereira Cardoso, Adenilda Cristina Honorio-França, Luana Paula Sales Silva, Maria Clara Bianchini Neves, Arlyson Sousa Ferreira, Arleana do Bom Parto Ferreira Almeida, Eduardo Luzía França, Luciano Nakazato, Valéria Régia Franco Sousa","doi":"10.1590/S1984-29612024076","DOIUrl":"10.1590/S1984-29612024076","url":null,"abstract":"Canine monocytic ehrlichiosis (CME) is an infectious disease that causes hematological changes in dogs. This study investigated the correlations between hematological and hemorheological parameters, serum proteins, and triglycerides in dogs with CME. Fifty-nine blood and/or bone marrow samples were collected from dogs with or without clinical signs of CME. Blood samples preserved with EDTA were subjected to rheological analysis to investigate blood viscosity. Fourteen dogs with Ehrlichia canis infection (CME group) and 20 without clinical signs and E. canis infection (CG) were selected by qPCR based on Ecaj_0503 gene. The blood viscosity of the infected dogs (CMEG) was lower than that of the control group (CG). The mean values and standard error of erythrocytes (CG: 6.71 ± 0.20; CMEG: 4.82 ± 0.23), platelets (CG: 235.6 ± 15.67; CMEG: 151.07 ± 16.51), and albumin (CG: 3.04 ± 0.15; CMEG: 2.65 ± 0.12) in the infected dogs were lower (p<0.005) than those in the control group. The decrease in erythrocytes influenced the decrease in blood viscosity. Total protein, albumin and triglycerides levels correlated with blood viscosity in infected dogs. Overall, this study shows that dogs with CME have decreased blood viscosity primarily due to anemia and interactions with negative acute-phase proteins.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e003024"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756824/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957356","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 and histopathological analysis of cystic echinococcosis in ruminants of District Narowal, Pakistan: focus on pulmonary involvement. 巴基斯坦Narowal地区反刍动物囊性包虫病的患病率和组织病理学分析：重点是肺部累及。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024080

Muhammad Usman, Hafiz Muhammad Rizwan, Muhammad Sohail Sajid, Razia Kausar, Urfa Bin Tahir, Haider Abbas, Muhammad Khalil Ateeq, Mohsin Raza, Mahvish Maqbool, Dalia Fouad, Farid S Ataya

{"title":"Prevalence and histopathological analysis of cystic echinococcosis in ruminants of District Narowal, Pakistan: focus on pulmonary involvement.","authors":"Muhammad Usman, Hafiz Muhammad Rizwan, Muhammad Sohail Sajid, Razia Kausar, Urfa Bin Tahir, Haider Abbas, Muhammad Khalil Ateeq, Mohsin Raza, Mahvish Maqbool, Dalia Fouad, Farid S Ataya","doi":"10.1590/S1984-29612024080","DOIUrl":"10.1590/S1984-29612024080","url":null,"abstract":"A total of 384 animals (sheep, goat, cattle, and buffalo) were examined for the presence of hydatid cysts only in the lungs. The lung tissue samples associated with the hydatid cyst were collected immediately after slaughter, followed by fixation in 10% formalin. The fixed tissue was subjected to paraffin embedding technique. Tissue sections of 5 microns were cut by microtome and stained using Harri's Haematoxilin and Eosin method. Overall, 13.80% of ruminants were found positive for lung infections with hydatid cyst. Only the sex of ruminants showed significant (P < 0.05) association with the infection of hydatid cyst in lungs. All other variables, such as species of ruminants, age, and months showed non-significant (P > 0.05) association. Pulmonary sections taken from infected animals revealed laminated membranes encased in a region with significant (P < 0.05) cellular infiltration (53.4 ± 7.9 µm2), primarily composed of lymphocytes, plasma cells, macrophages, and occasionally neutrophils, and eosinophils. In addition, significant (P < 0.05) epithelial disruption in the bronchioles (0.94 ± 0.05 µm2) and alveolar septa were also noticed in sections. These histopathological findings lead to the conclusion that pathological changes occur in the tissues surrounding the cyst as well as in areas more distant from the cyst.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e016824"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11758849/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957291","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

Eco-epidemiological analysis of Rickettsia parkeri in domestic dogs and Amblyomma ovale ticks in the Atlantic rainforest of Northeast Brazil. 巴西东北部大西洋雨林家犬和卵圆弱视蜱的立克次体生态流行病学分析。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-16 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024077

Michellin Pereira de Albuquerque, Mauricio Claudio Horta, Daniele Rosa Xavier de Melo, Gabriela Akemi Cardoso Gagliardi Takeda, Ana Isabel Arraes-Santos, Thiago Fernandes Martins, Adriano Pinter

{"title":"Eco-epidemiological analysis of Rickettsia parkeri in domestic dogs and Amblyomma ovale ticks in the Atlantic rainforest of Northeast Brazil.","authors":"Michellin Pereira de Albuquerque, Mauricio Claudio Horta, Daniele Rosa Xavier de Melo, Gabriela Akemi Cardoso Gagliardi Takeda, Ana Isabel Arraes-Santos, Thiago Fernandes Martins, Adriano Pinter","doi":"10.1590/S1984-29612024077","DOIUrl":"10.1590/S1984-29612024077","url":null,"abstract":"In Brazil, spotted fever (SF) is caused by two species of Rickettsia, both of which are transmitted by Amblyomma ticks: Rickettsia rickettsii, which results in severe and often fatal cases, and Rickettsia parkeri, which causes a mild illness. This study focused on R. parkeri in Amblyomma ovale ticks from the Maciço de Baturité region, Ceará, Northeast Brazil, an area endemic for SF with mild symptoms. We examined 60 domestic dogs with access to the forest for ticks and Rickettsia seroprevalence. A landscape analysis was conducted in all forest patches within 2-10 km from the main forest edge. In total, 125 A. ovale ticks were collected from 30 dogs (50%). DNA from 65 ticks was tested using genus-specific Rickettsia primers. Three (4.6%) tick specimens tested positive for R. parkeri while the Rickettsia seroprevalence among the dogs was 55% (33/60). A probable occurrence of Rickettsia transmission was observed in the fragmented Atlantic rainforest, which has 1,019 ha of preserved land and 50.6 km of perimeter border. The land's characteristics allow for semi-domiciled dogs to access forest fragments, where A. ovale ticks are commonly present. Infected ticks may parasitize the dogs, which then transport the ticks into homes, potentially transmitting SF-causing bacteria to humans.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e012524"},"PeriodicalIF":1.3,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856235","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

A new Ceratomyxa (Cnidaria: Myxosporea) infecting the ornamental fish species Pterophyllum scalare from the Amazon Region, Brazil. 巴西亚马逊地区观赏鱼一新种角霉病（刺胞目：粘孢子虫）。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-13 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024075

Rafaela Franco de Araújo, Abthyllane Amaral de Carvalho, Roger Leomar da Silva Ferreira, Saturo Cardoso Morais, Luize Cristine Pantoja Dos Reis, Pedro Lucas Dos Santos de Oliveira, Marcela Nunes Videira, Aldi Feiden

{"title":"A new Ceratomyxa (Cnidaria: Myxosporea) infecting the ornamental fish species Pterophyllum scalare from the Amazon Region, Brazil.","authors":"Rafaela Franco de Araújo, Abthyllane Amaral de Carvalho, Roger Leomar da Silva Ferreira, Saturo Cardoso Morais, Luize Cristine Pantoja Dos Reis, Pedro Lucas Dos Santos de Oliveira, Marcela Nunes Videira, Aldi Feiden","doi":"10.1590/S1984-29612024075","DOIUrl":"10.1590/S1984-29612024075","url":null,"abstract":"A new parasite of the Class Myxozoa is described in the gallbladder of the ornamental angelfish Pterophyllum scalare, in two municipalities in the state of Amapá, Brazil, based on morphological, morphometric and phylogenetic descriptions. From October 2022 to August 2024 fifty-five angelfish specimens were sampled in Macapá (n=10) and Tartarugalzinho (n=45). Slightly arched mixospores were observed by light microscopy and had characteristics consistent with those of the genus Ceratomyxa. These obtained an average length of 1.6 ± 0.2 µm and 11.5 ± 1.1 µm in thickness. The polar capsules were subspherical and 0.7 ± 0.1 µm long and 0.6 ± 0.1 µm wide, with 3 to 4 turns of the polar filament. Phylogenetic analysis showed that the new species is grouped in the family Ceratomyxidae, in addition to being positioned in the same subclade of freshwater ceratomyxids from the Brazilian Amazon, demonstrating that this species shares a common ancestor with its close relatives, based on geographic affinity. Ceratomyxa tavariensis n. sp. is the first species of the class Myxozoa described infecting angelfish in Brazil, and the thirteenth species of Ceratomyxa described in the country.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e018324"},"PeriodicalIF":1.3,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756827/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856233","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

Parasite infestations and infections of non-traditional pets and wild mammals: diagnosis and treatment. 非传统宠物和野生哺乳动物的寄生虫感染和感染：诊断和治疗。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2024-12-13 eCollection Date: 2024-01-01 DOI: 10.1590/S1984-29612024074

Raphael Vieira Ramos, Tiago Manuel Fernandes Mendes, Estevam Lux Hoppe, Darci Moraes Barros-Battesti, Marlene Tiduko Ueta, Silmara Marques Allegretti

{"title":"Parasite infestations and infections of non-traditional pets and wild mammals: diagnosis and treatment.","authors":"Raphael Vieira Ramos, Tiago Manuel Fernandes Mendes, Estevam Lux Hoppe, Darci Moraes Barros-Battesti, Marlene Tiduko Ueta, Silmara Marques Allegretti","doi":"10.1590/S1984-29612024074","DOIUrl":"10.1590/S1984-29612024074","url":null,"abstract":"Little is known about parasites in wild mammals kept as pets. For this study, fecal and skin/fur samples and ectoparasites from 55 wild and pet mammals attended at a veterinary clinic were evaluated. Opossums (Didelphis albiventris and Didelphis aurita) were parasitized by helminths (Aspidodera sp., Cruzia tentaculata, Trichuris sp., Turgida turgida and Acanthocephala gen. sp.), screw-worm fly larvae (Cochliomyia hominivorax), ticks (Amblyomma dubitatum and Amblyomma sculptum) and fleas (Ctenocephalides felis). Hedgehogs (Atelerix albiventris) were parasitized by mites (Caparinia tripilis), capybaras (Hydrochoerus hydrochaeris) by ticks (A. dubitatum and A. sculptum), a ferret (Mustela putorius furo) by fleas (C. felis), an orange-spined hairy dwarf porcupine (Sphiggurus villosus) by screw-worm fly larvae (C. hominivorax) and another for ticks (Amblyomma longirostre). Overall, mites were found only in pet animals and helminths were found only in wild animals. Infestation by Caparinia tripilis was only found in animals with concomitant illness or stress. Cruzia tentaculata actively exited its opossum host by passing through the animal's anus as its clinical condition worsened.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"33 4","pages":"e017324"},"PeriodicalIF":1.3,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756823/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856239","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}

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