First occurrence of feline sporotrichosis in a metropolitan area of Central-West Brazil.

Sporotrichosis is a neglected mycosis that affects human and animal hosts, including domestic cats. In Brazil, its most frequently diagnosed etiological agent is Sporothrix brasiliensis. Zoonotic transmission of S. brasiliensis occurs via direct contact between an infected cat and a susceptible human host. Notification of confirmed cases of feline sporotrichosis is not mandatory in Brazil. The metropolitan area of Goiania city can be considered a silent area for the occurrence of feline sporotrichosis. In this context, voluntary reporting of feline sporotrichosis cases is recommended for all healthcare professionals. This study aimed to report the first occurrence of S. brasiliensis in a cat from the metropolitan area of Goiania city. Cytopathology, mycology, thermal dimorphism and calmodulin gene amplification tests were performed. The mycological and molecular biological diagnoses corresponded to S. brasiliensis. The etiological agent of zoonotic sporotrichosis was detected in the metropolitan area of Goiania city, and therefore there is a risk of the emergence of new cases of cats infected with S. brasiliensis and the occurrence of zoonotic transmission of this fungus.

Seroprevalence of Equine Leptospirosis in the State of Goiás, Brazil.

Leptospirosis, caused by Leptospira, is a zoonotic disease that, in horses, is linked to abortions, uveitis, and sporadic occurrences of liver and kidney disease, often resulting in significant economic losses for farmers. Research on the prevalence of leptospirosis in horses in the central-west region of Brazil has been relatively scarce. Thus, the present study aimed to determine the prevalence of leptospirosis in equine herds in the state of Goiás (Central Brazil). Blood samples were collected from 894 equids at 294 randomly selected farms divided into three different strata according to their herd characteristics. The microscopic agglutination test for the detection of anti-Leptospira agglutinins was carried out and the results showed that among the 294 sampled farms, 213 (72.9%; CI 95% 71.7-78.9) had one or more animals positive for leptospirosis, and of the 894 horses sampled, 513 (61.6%; CI 95% 54.3-69.0) were seropositive for leptospirosis. Djasiman, Icterohaemorrhagiae, and Australis were the most prevalent serogroups. The results showed a high prevalence of seropositive animals and a widespread distribution of positive farms in the state of Goiás. Thus, environmental sanitation measures and health education to prevent and control equine leptospirosis in the state are required.

Gallus gallus domesticus: immune system and its potential for generationof immunobiologics / Gallus gallus domesticus: sistema imunológico e seu potencial para geração de imunobiológicos

ABSTRACT: Gallus gallus domesticus' immune system is a promising tool for generation of antibody-based immunobiologics. Immunoglobulin y (IgY) is extracted from egg yolk and has equivalent functions to mammal's igg antibody. Avian immune system can be stimulated to produce a high-quality antibody repertoire. In this review, we present an overview of avian immune system emphasizing igy and its applications as an immunobiologic.

RESUMO: O sistema imunológico deGallus gallus domesticus é uma ferramenta promissora para a geração de imunobiológico a partir de anticorpos. A imunoglobulina Y (IgY) é extraída da gema do ovo e apresenta funções equivalentes ao anticorpo IgG dos mamíferos. O sistema imune aviário pode ser estimulado para produzir um repertório de anticorpos de alta qualidade. Nesta revisão apresentamos aspectos gerais do sistema imune aviário enfatizando o IgY e suas aplicações como um imunobiológico.

Prevalência de parasitos gastrintestinais e de toxoplasmose em ovinos da região de Uberaba, MG / Prevalence of gastrointestinal parasites and toxoplasmosis sheep in the region of Uberaba, state of Minas Gerais

Com o objetivo de identificar os principais parasitos gastrintestinais que acometem os ovinos, bem como a ocorrência de anticorpos IgG contra Toxoplasma gondii, foram realizados 270 exames coprológicos (OPG/OOPG) e 250 sorológicos (imunofluorescência indireta-IFI) nos ovinos da região de Uberaba-MG. Das amostras de fezes coletadas, 217 (80,37%) eram positivas, com prevalência de Strongyloidea (88,47%), Eimeria spp. (63,13%), Strongyloides sp. (24,42%), Skrjabinema sp. (0,73%) e Moniezia sp. (0,73%) e Capillaria sp. (0,46%). Dos 250 soros testados para Toxoplasma gondii, 144 (57,60%) apresentavam títulos acima do ponto de corte (64), sendo 77,78% com título de 64 e 22,22% de 128. Esses resultados são importantes para nortear proprietários e veterinários sobre a necessidade de diagnosticar e controlar as parasitoses que acometem os rebanhos ovinos.

In order to identify the gastrointestinal sheep´s parasites, and the occurrence of antibodies against Toxoplasma gondii, 270 stool tests (OPG/OOPG) and 250 serological tests (indirect immunofluorescence (IIF) were performed in properties in the region of Uberaba-MG. From the stool samples collected 217 (80.37%) were positive, with a prevalence of Strongyloidea (88.47%), Eimeria spp. (63.13%), Strongyloides sp. (24.42%), Skrjabinema sp. (0.73%), Moniezia (0.73%) and 0.46% Capillaria sp. From the 250 sera tested for Toxoplasma gondii, 144 (57.60%) had titers above the cut-off (64), 77.77% with title 64 and 22.22% with title 128. These results are important to guide owners and veterinarians about the need for prevention and control methods for parasites that affect sheep flocks.