A5063922367- Toxoplasma gondii Research Studies
- Parasitic Infections and Diagnostics
- Herpesvirus Infections and Treatments
- Coccidia and coccidiosis research
- Helminth infection and control
- Rabies epidemiology and control
- Bird parasitology and diseases
- T-cell and Retrovirus Studies
- Animal Disease Management and Epidemiology
- Vector-Borne Animal Diseases
- Vector-borne infectious diseases
- Animal Nutrition and Physiology
- Polyamine Metabolism and Applications
- Microbial infections and disease research
- Aquaculture disease management and microbiota
- Parasite Biology and Host Interactions
- Cytomegalovirus and herpesvirus research
Universidade Estadual de Londrina
2017-2025
Centro Universitário Filadélfia
2024
Universidade Federal de Lavras
2024
The aim of the present study was to evaluate re-shedding T. gondii oocysts in cats fed tissue cysts homologous and heterologous strains 12, 24 36 months after first infection. Thirteen were used divided into four groups: G1 (n=2), G2 (n=3), G3 (n=5), G4 (n=3). G1, infected with brain ME49 TgDoveBr8, both genotype II gondii. re-infected twelve VEG strain (genotype III), TgDoveBr1 II). a third time from second infection, initial infection strain. cats' feces evaluated using fecal flotation...
Introduction: Toxoplasma gondii can infect all warm-blooded animals, including humans, which makes it a significant public health concern worldwide. Dogs play crucial role in the epidemiology of toxoplasmosis by acting as mechanical vectors and sentinel for environmental contamination. Objectives: This study aimed to assess seroprevalence spatial distribution T. dogs from Ourinhos, São Paulo, Brazil. Methods: Blood samples 602 different areas Ourinhos municipality were collected during...
Abstract The present study aimed to perform an epidemiological and morphological identification of Eimeria infection in sheep Brazil. Fecal samples from were collected 20 farms northern Paraná, An questionnaire was used evaluate the risk factors. containing oocysts per gram feces (OoPG) ≥1000 subjected modified Willis-Mollay method oocyst identification. Sporulated observed microscopically for A total 807 fecal collected. Based on characteristics sporulated oocysts, 10 species identified,...
Abstract Bovine coccidiosis is a disease of major importance in cattle herds across the world. The disorder mainly affects young calves, and E. bovis zuernii are considered most pathogenic species genus, however, alabamensis have been described grazing calves. In this study, prevalence Eimeria spp. was evaluated calves on dairy farms northern region state Paraná, Brazil. Four hundred 44 were tested for presence coccidian oocysts. positives re-examined oocysts morphometrically analyzed...
Neosporosis is an infectious disease caused by Neospora caninum, a protozoan parasite that has worldwide distribution and responsible for enormous economic losses in cattle. Birds are considered good bioindicator of environmental contamination, since they feed on the ground, being exposed to N. caninum oocysts. The aim this study was determine occurrence antibodies against verify presence DNA brain from free-ranging eared doves (Zenaida auriculata) Southern Brazil. For purpose, blood samples...
Neospora caninum é um parasita que causa perdas consideráveis na pecuária bovina. Compreender os seus mecanismos de infecção essencial para compreender o seu impacto nos rebanhos. O fracionamento celular e a caracterização das frações poderão contribuir seleção proteínas organelas com características imunogênicas. Assim, presente estudo teve como objetivo isolar roptrias subcelulares N. utilizando gradiente sacarose caracterizar sua imunogenicidade em camundongos. Taquizoítos da cepa Nc-1...
Abstract Cryptosporidium is a protozoan parasite with wide range of hosts, including humans. However, only few species have been described in birds (C. meleagridis, C. baileyi, galli and avium). The aim this study was to investigate the occurrence spp. feces eared doves (Zenaida auriculata), followed by molecular characterization parasite. A total 196 animals both sexes were trap-captured; culled intestinal contents collected for DNA extraction. After extraction, nested-PCR (nPCR), which...
ABSTRACT: Toxoplasmosis, neosporosis, and leishmaniasis are important diseases of worldwide distribution can affect both pets humans. Hunting dogs have been trained to hunt domestic wild animals, which makes them more exposed parasitic infections. The present study aimed evaluate the seroprevalence Toxoplasma gondii, Neospora caninum, Leishmania spp. in hunting from a rural area Mato Grosso do Sul, Brazil. Serum samples were collected 39 American Foxhound dogs, sex age variables recorded....
The aim of the present study was to detect Eimeria spp. in eared doves (Zenaida auriculata) from Brazil. Two hundred and fourteen birds were trap-capture different regions Londrina city, Paraná state, Southern Fecal samples collected, DNA extraction performed. A nested PCR based on subunit I cytochrome c oxidase gene mitochondrial genome used presence this coccidian dove feces. From 214 birds, 171 (79.9%) positive for There significantly difference positivity between site capture. When...
In this study, we aimed to investigate an outbreak of abortion in a herd beef sheep on property Ivaiporã, north central Paraná, Brazil. A total 64 blood samples were collected from the sheep, 33 which mothers with reports or stillbirth, and 7 weak lamb birth. For epidemiological investigation parasite, fourteen different sources property, six water, three soil, one trough, four feed. Indirect immunofluorescence (IFI) analysis polymerase chain reaction performed for detecting anti-Toxoplasma...
Neospora caninum is an apicomplexan parasite distributed worldwide. Although a positive association between the presence of birds and abortions in cattle associated to N. has been reported, role epidemiologic cycle unknown. To best knowledge, no experimental studies have evaluated eared dove, Zenaida auriculata. Therefore, we aimed determine whether Z. auriculat can act as intermediate host for caninum. Eighteen were divided into four groups, G1, G2, G3, G4 (control); G2 G3 received 2 × 106...
Abstract The aim of this study was to verify the presence and identify species haemosporidian parasites in eared doves (Zenaida auriculata) Brazil. Two hundred eleven male female were trap-captured four different regions Londrina city, southern Whole blood collected EDTA tubes through heart puncture after euthanasia a CO2 chamber. A nested PCR targeting mitochondrial cytochrome b gene (cyt b) Haemoproteus spp./Plasmodium spp. performed, followed by an enzymatic digestion genus. Phylogenetic...
Felines are definitive hosts of Toxoplasma gondii and can shed oocysts in their feces, contaminating the environment. Sporulated highly resistant to environment have higher infectivity, which attributed many toxoplasmosis outbreaks. The aim present study was evaluate a quantitative polymerase chain reaction (qPCR) technique for detection T. by cats. Twelve cats from previous vaccine experiment were challenged orally with 600 cysts TgDoveBr8 strain on day 72. Fecal samples collected daily...
Neosporosis is one of the principal causes reproductive problems in cattle worldwide. The aim this study was to evaluate occurrence anti-Neospora caninum antibodies and dogs from dairy farms central northern region Paraná state. Blood samples with without EDTA were collected 400 46 20 properties. Nested polymerase chain reaction (n-PCR) performed on whole blood indirect immunofluorescence (IFR) serum (after clot retraction). Cattle titers ? 100 50, respectively, considered positive. Anti-N....
ABSTRACT: This study investigated the association between neurological signs as well plausible risk factors and seroprevalence of Toxoplasma gondii Neospora caninum infection in dogs Campo Grande region Mato Grosso do Sul, Brazil. In this study, were divided into two groups based on presence absence (n=30 each group). Serological diagnosis was performed using indirect fluorescent antibody test. group with disorders, 23.3% 30% had anti-T. anti-N. antibodies, respectively. Moreover, three from...
ABSTRACT Neospora caninum is an important worldwide parasite responsible for causing abortion in animals. Due to limited information on the occurrence of infection by this state Rondônia, Brazil, study aimed determine seroprevalence and identify risk factors associated with slaughtered cattle, from 19 municipalities distributed seven microregions state. A total 494 samples were obtained subjected anti-N. antibodies, using Indirect Immunofluorescence Reaction technique. Antibodies detected...