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Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology

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https://www.readbyqxmd.com/read/28876360/all-about-neosporosis-in-brazil
#1
Camila Koutsodontis Cerqueira-Cézar, Rafael Calero-Bernal, Jitender Prakash Dubey, Solange Maria Gennari
Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990's N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N...
August 31, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28902262/morphological-and-morphometric-features-of-nematode-cysts-in-gymnotus-inaequilabiatus-liver-in-the-brazilian-pantanal
#2
Gizela Melina Galindo, Robson Andrade Rodrigues, Sandriely Fernanda Marcondes, Priscilla Soares, Luiz Eduardo Roland Tavares, Carlos Eurico Fernandes
The aim of this study was to determine the morphometric measures and morphological aspects of nematode-cysts in Gymnotus inaequilabiatus, and the presence of melanomacrophage centers (MMCs) associated with the periphery of cysts and in the liver parenchyma. Adult specimens, 34 female (123.1 ± 43.9g) and 45 male (135.5 ± 43.4g), from Paraguay River, Corumbá, Brazil, were used. The number of nematode-cysts was determined in 79 livers and 25 of them randomly selected for histopathological analysis and morphometric measures of nematode-cysts (mean diameter, thickness of collagen layer, and cyst-wall layer)...
August 24, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28902261/detection-of-anaplasma-sp-phylogenetically-related-to-a-phagocytophilum-in-a-free-living-bird-in-brazil
#3
Anna Claudia Baumel Mongruel, Jyan Lucas Benevenute, Priscila Ikeda, Marcos Rogério André, Rosangela Zacarias Machado, Adriano de Oliveira Torres Carrasco, Meire Christina Seki
Wild animals play an important role in carrying vectors that may potentially transmit pathogens. Several reports highlighted the participation of wild animals on the Anaplasma phagocytophilum cycle, including as hosts of the agent. The aim of this study was to report the molecular detection of an agent phylogenetically related to A. phagocytophilum isolated from a wild bird in the Midwest of the state of Paraná, Brazil. Fifteen blood samples were collected from eleven different bird species in the Guarapuava region...
August 24, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28902260/hepatozoon-caimani-in-caiman-crocodilus-yacare-crocodylia-alligatoridae-from-north-pantanal-brazil
#4
Andréa Bouer, Marcos Rogério André, Luiz Ricardo Gonçalves, Mayara de Cássia Luzzi, Juliana Paula de Oliveira, Adriana Carlos Rodrigues, Alessandro de Melo Varani, Vitor Fernandes Oliveira de Miranda, Lívia Perles, Karin Werther, Rosangela Zacarias Machado
Hepatozoon species are the most common intracellular hemoparasite found in reptiles. Hepatozoon caimani, whose vectors are Culex mosquitoes, has been detected in a high prevalence among caimans in Brazil by blood smears examinations. The present work aimed to detect and characterize the Hepatozoon spp. found in 33 caimans (24 free-ranging and 9 captive; 28 males and 5 females) (Caiman crocodilus yacare) sampled at Poconé, North Pantanal, state of Mato Grosso, Brazil, using blood smears examinations and molecular techniques...
August 24, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28902259/clinical-and-hematological-evaluation-of-rangelia-vitalii-naturally-infected-dogs-in-southeastern-brazil
#5
Tatiana Didonet Lemos, Helena Keiko Toma, Renata Quintela Assad, Adrianna Vieira da Silva, Rafael Gomes Bartolomeu Corrêa, Nádia Regina Pereira Almosny
Rangelia vitalii, a tick-borne piroplasm that infects dogs, has been recently molecularly characterized in Brazil, Uruguay and Argentina. Studies on molecular characterization of these piroplasms in different Brazilian regions are scarce. The aim of this study was to evaluate clinical and hematological changes in dogs caused by R. vitalii in the mountainous region of the state of Rio de Janeiro. Blood samples from 36 dogs were evaluated for piroplasms and hematological disorders using light microscopy and molecular analysis...
August 24, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28902258/phlebotomines-in-an-area-endemic-for-american-cutaneous-leishmaniasis-in-northeastern-coast-of-brazil
#6
Ana Patricia Oliveira da Silva, Débora Elienai de Oliveira Miranda, Marcos Antônio Bezerra Santos, Neurisvan Ramos Guerra, Silvia Rafaelli Marques, Leucio Câmara Alves, Rafael Antonio Nascimento Ramos, Gílcia Aparecida de Carvalho
Phlebotomines have worldwide distribution with many species present in Brazil, including the northeastern region, where the fauna is very diverse. The aim of this study was to identify the sandfly fauna in an area endemic for American cutaneous leishmaniasis (ACL) in the state of Pernambuco. Sandflies were caught on three consecutive nights every month from October 2015 to September 2016, from 5 pm to 5 am, using seven light traps of Centers for Disease Control (CDC) type. Females were identified and used for molecular Leishmania detection...
August 24, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28700001/genetic-variability-of-leishmania-infantum-in-naturally-infected-dogs-in-the-state-of-bahia-brazil
#7
Fábio Santos Carvalho, George Rêgo Albuquerque, Paulo Luiz Souza Carneiro, Amauri Arias Wenceslau
In Brazil, Leishmania infantum mainly affects humans and dogs. The state of Bahia presents many dogs that are positive for this parasite. Despite the importance of epidemiology in this region, there are still very few studies that have assessed the genetic characteristics of L. infantum. The aim of this study is to investigate the genetic variability of L. infantum isolated identified in naturally infected dogs, in order to verify occurrence of subpopulation of this parasite in the different biomes existing in the state of Bahia...
July 10, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28700000/ticks-infesting-captive-and-free-roaming-wild-animal-species-at-the-s%C3%A3-o-paulo-zoo-s%C3%A3-o-paulo-brazil
#8
Irys Hany Lima Gonzalez, Marcelo Bahia Labruna, Carolina Romeiro Fernandes Chagas, Paula Andrea Borges Salgado, Cauê Monticelli, Luan Henrique Morais, Amanda Alves de Moraes, Thatiane Cristina Antunes, Patrícia Locosque Ramos, Thiago Fernandes Martins
Ticks are ectoparasites of worldwide distribution that affect vertebrates and can transmit pathogens to animals and humans. The Zoological Park Foundation of São Paulo (FPZSP) is located in a Conservation Unit in one of the most important remaining fragments of the Atlantic Rainforest biome in the suburbs of São Paulo, Brazil. The FPZSP houses more than 3,000 wild animals on exhibit, in breeding programs and in environmental education programs, and also attracts migratory birds and free-roaming wildlife. This study focused on identifying the diversity of tick species that infest captive and free-roaming animals at the FPZSP...
July 10, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28699999/detection-of-zoonotic-and-livestock-specific-assemblages-of-giardia-duodenalis-in-free-living-wild-lizards
#9
Aurora Reboredo-Fernández, Elvira Ares-Mazás, Pedro Galán, Simone Mario Cacciò, Hipólito Gómez-Couso
Giardia duodenalis is a zoonotic parasite that infects the gut of a wide range of vertebrates, including numerous wildlife species. However, little is known about this protozoan parasite in reptiles. Fecal samples from 31 wild lizards were collected in Galicia (northwest Spain) and screened for the presence of Giardia by PCR amplification and sequencing of the ITS1-5.8S-ITS2 region in the ribosomal unit. This allowed detection of the parasite in 5 samples (16.1%), and enabled identification of G. duodenalis assemblage A2 in two samples of Iberian rock lizard (Iberolacerta monticola), G...
July 10, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28678896/gastrointestinal-parasites-in-stray-and-shelter-cats-in-the-municipality-of-rio-de-janeiro-brazil
#10
Pâmela Figueiredo Pereira, Alynne da Silva Barbosa, Ana Paula Pereira de Moura, Marcelo Leitão Vasconcellos, Claudia Maria Antunes Uchôa, Otílio Machado Pereira Bastos, Maria Regina Reis Amendoeira
The increasingly urban nature of the population has led many people to choose independent pets, such as cats. This situation has also made it possible for these animals to be abandoned, thus increasing the numbers of cats on the streets and in shelters. These animals can act as a source of infection for other hosts. Between 2014 and 2015, the frequency of gastrointestinal parasites in captive and stray cats in the municipality of Rio de Janeiro was analyzed. Ninety-one fecal samples were collected from captive cats and 172 from stray cats...
June 29, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28678895/ixodidae-fauna-of-domestic-dogs-in-parana-southern-brazil
#11
Bianca Ressetti da Silva, Marcos Valério Garcia, Vinicius da Silva Rodrigues, Renato Andreotti, Rosangela Locatelli Dittrich
The present study aimed to contribute towards identification and registration of tick species that parasitize dogs in rural and urban areas of three mesoregions of Paraná, southern Brazil, and to estimate the rate of occurrence of each species. Fifty-six dogs with ticks living in three mesoregions: Metropolitana de Curitiba (MC), Centro Oriental (COP) and Centro Sul Paranaense (CSP), were used in the study. From these 56 dogs, 253 ticks were collected and were identified and morphologically characterized according to the species...
June 29, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28678894/first-outbreak-and-subsequent-cases-of-trypanosoma-vivax-in-the-state-of-goi%C3%A3-s-brazil
#12
Thiago Souza Azeredo Bastos, Adriana Marques Faria, Darling Mélany de Carvalho Madrid, Luciana Cardoso de Bessa, Guido Fontgalland Coelho Linhares, Otavio Luiz Fidelis, Paulo Henrique Sampaio, Breno Cayeiro Cruz, Leonardo Bueno Cruvinel, João Eduardo Nicaretta, Rosangela Zacarias Machado, Alvimar José da Costa, Welber Daniel Zanetti Lopes
Trypanosomiasis caused by Trypanosoma vivax has increased the reports in Brazil in the last decade. An outbreak is herein first reported in the state of Goiás, from May 2016 to January 2017. The outbreak start occurred in the city of Ipameri (Goiás) after the introduction of 18 auctioned cows from the state of Minas Gerais. Direct parasitological test (blood smears) and polymerase chain reactions targeting the catL genes diagnosed T. vivax infection. Fifty six cows from a herd of 161 were infected; 12 died during the outbreak and 44 animals persistently positive (by blood smears) even after chemical treatment were discarded...
June 29, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28678893/validity-of-a-commercial-kit-for-detection-of-antibodies-in-bovine-serum-in-an-endemic-area-for-fasciolosis
#13
Aline Nunes Simões, Sayanne Luns Hatum de Almeida, Áquila Flávia da Rocha Braga, Isabella Vilhena Freire Martins, Dirlei Molinari Donatele, Graziela Barioni
Fasciolosis is caused by Fasciola hepatica that affects the bile ducts and liver parenchyma of ruminants, which can result in economic loss. This study aimed to carry out the validity of the commercial kit ELISA® indirect front of the simple fecal sedimentation test used as the standard. 143 samples were collected blood and feces of cattle from Jerome, south of the Espírito Santo. Serum samples were left at -80 °C and used to perform the ELISA kit IDEXX®. All animals to stool examinations were also positive to the ELISA (22) and negative samples to test stool (121), 52 animals reacted positively against the antibody research...
June 29, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28658416/first-report-of-scuticociliatosis-caused-by-uronema-sp-in-ornamental-reef-fish-imported-into-brazil
#14
Pedro Henrique Magalhães Cardoso, Simone de Carvalho Balian, Eliana Reiko Matushima, Santiago Benites de Pádua, Maurício Laterça Martins
Scuticociliatosis, which is caused by an opportunistic ciliate protozoan, is responsible for significant economic losses in marine ornamental fish. This study reports the occurrence of Uronema sp., which was found to be parasitizing three species of marine reef fish imported into Brazil and maintained in quarantine: Vanderbilt's Chromis (Chromis vanderbilti), blue-green damselfish (Chromis viridis), and sea goldie (Pseudanthias squamipinnis). During the quarantine period, some fish presented with behavioral disorders and hemorrhages and ulcerative lesions on the body surface...
June 22, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28746453/occurrence-of-paratanaisia-confusa-freitas-1951-in-free-living-guira-cuckoo-guira-guira-cuculiformes-crotophagidae
#15
Mariele de Santi, Marcos Rogério André, Estevam Guilherme Lux Hoppe, Karin Werther
This report presents a description of natural infection of an adult free-living guira cuckoo with Paratanaisia confusa. Histological and morphological evaluations of renal and parasite samples were performed. The morphological analysis of the parasites revealed spiny tegument, characteristic of P. confusa helminthes. Although macroscopic alterations were absent in the kidneys, the histopathology revealed parasites inside the collecting ducts causing dilatation and destruction of the lining epithelial cells in addition to small focal inflammatory infiltrates in the renal parenchyma...
April 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28746452/first-parasitological-study-of-the-african-clawed-frog-xenopus-laevis-amphibia-in-chile
#16
Cristóbal Castillo, Gabriel Lobos, Daniel González-Acuña, Lucila Moreno, Cynthya Elizabeth González, Carlos Landaeta-Aqueveque
Introduced species can arrive into new territories with parasites; however, these species are expected to face lower parasite richness than in their original regions. Both introduced hosts and parasites can affect native fauna. Since their release into the wild in Chile following laboratory use, Xenopus laevis Daudin, 1802 has widely spread throughout central Chile. The only pathogen described on the host is the fungus Batrachochytrium dendrobatidis Longcore, Pessier, Nichols, 1999; thus, this is the first parasitological study of this species in Chile...
April 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28746451/histopathological-changes-induced-by-hysterothylacium-deardorffoverstreetorum-larvae-nematoda-raphidascarididae-in-priacanthus-arenatus-cuvier-1829-actinopterygii
#17
Bianca Porto Kuraiem, Marcelo Knoff, Nilza Nunes Felizardo, Rodrigo Caldas Menezes, Delir Corrêa Gomes, Sérgio Carmona de São Clemente
Priacanthus arenatus is a fish that occurs in the waters of the western Atlantic Ocean and has few records of parasitism. This study aimed to report histological changes caused by the larvae of Hysterothylacium deardorffoverstreetorum. Between July and December, 2013, 30 samples of P. arenatus were obtained from fish markets in the cities of Niterói and Rio de Janeiro, state of Rio de Janeiro, Brazil. Fragments of spleen, liver, stomach wall and mesentery tissues containing nodules and free parasites were extracted to histopathological study...
April 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28746450/anti-toxoplasma-gondii-antibodies-in-beef-cattle-slaughtered-in-the-metropolitan-region-of-bel%C3%A3-m-brazilian-amazon
#18
Ediclei Lima do Carmo, Rafaela Dos Anjos Pinheiro Bogoevich Morais, Michele de Souza Lima, Carla Cristina Guimarães de Moraes, George Rêgo Albuquerque, Aristeu Vieira da Silva, Marinete Marins Póvoa
The relevance of consuming raw or undercooked beef in the transmission of toxoplasmosis is unclear due to the high resistance of cattle to infection. However, this possibility needs to be considered in endemic areas, such as the Amazon, where the consumption of beef is frequent. The objective of this study was to determine the frequency of anti-Toxoplasma gondii IgG antibodies in beef cattle slaughtered in the metropolitan region of Belem, Pará state, Brazil. Blood samples were collected from 500 animals of both genders in a licensed slaughterhouse in Belém...
April 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28746449/gut-transcriptome-analysis-on-females-of-ornithodoros-mimon-acari-argasidae-and-phylogenetic-inference-of-ticks
#19
Gabriel Alves Landulfo, José Salvatore Leister Patané, Dalton Giovanni Nogueira da Silva, Inácio Loiola Meirelles Junqueira-de-Azevedo, Ronaldo Zucatelli Mendonca, Simone Michaela Simons, Eneas de Carvalho, Darci Moraes Barros-Battesti
Ornithodoros mimon is an argasid tick that parasitizes bats, birds and opossums and is also harmful to humans. Knowledge of the transcripts present in the tick gut helps in understanding the role of vital molecules in the digestion process and parasite-host relationship, while also providing information about the evolution of arthropod hematophagy. Thus, the present study aimed to know and ascertain the main molecules expressed in the gut of argasid after their blood meal, through analysis on the gut transcriptome of engorged females of O...
April 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28746448/fatal-toxoplasmosis-in-an-immunosuppressed-domestic-cat-from-brazil-caused-by-toxoplasma-gondii-clonal-type-i
#20
Hilda Fátima de Jesus Pena, Camila Mariellen Evangelista, Renata Assis Casagrande, Giovana Biezus, Claudia Salete Wisser, Paulo Eduardo Ferian, Anderson Barbosa de Moura, Veronica Machado Rolim, David Driemeier, Solange Oliveira, Bruna Farias Alves, Solange Maria Gennari, Sandra Davi Traverso
The objective of the study was to report on a fatal case of feline toxoplasmosis with coinfection with the feline leukemia virus (FeLV). A domestic cat (Felis silvestris catus) presented intense dyspnea and died three days later. In the necropsy, the lungs were firm, without collapse and with many white areas; moderate lymphadenomegaly and splenomegaly were also observed. The histopathological examination showed severe necrotic interstitial bronchopneumonia and mild necrotic hepatitis, associated with intralesional cysts and tachyzoites of Toxoplasma gondii that were positive by anti-T...
April 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
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