Identification of Campylobacter fetus subsp. venerealis virulence genes in cervical mucus from cows.

We used the polymerase chain reaction to identify virulence genes in cervico-vaginal mucus samples from cows positive for Campylobacter fetus subsp. venerealis. There was positivity for the pldA, racR, dnaJ, cdtA, and cdtB genes.

Risk factors for Toxoplasma gondii infection in sheep and cattle from Fernando de Noronha Island, Brazil.

Toxoplasmosis is a zoonotic disease of global distribution that affects all warm-blooded animals. The purpose of this investigation was to determine the prevalence of T. gondii infection and identify the risk factors associated with its occurrence in domestic ruminants raised on the island of Fernando de Noronha, Brazil, and to confirm that cattle and sheep raised in Fernando de Noronha Island present statistically different T.

High prevalence of toxoplasmosis in free-range chicken of the Fernando de Noronha Archipelago, Brazil.

The present study aimed to determine the prevalence of toxoplasmosis in free-range chickens of the Fernando de Noronha Archipelago, Brazil and to identify risk factors associated with Toxoplasma gondii infection. Blood samples were collected from all the adult chickens raised in the Archipelago and screened by Indirect Fluorescent Antibody Test (430 samples, in total). Univariate analysis (Chi-square) and logistic regression were used to investigate the relationship between various variables possibly predictive of an increased likelihood of T.

Prevalence and risk factors associated with bovine genital campylobacteriosis and bovine trichomonosis in the state of Pernambuco, Brazil.

The aim of the present study was to determine the prevalence and risk factors associated with Campylobacter fetus subsp. venerealis and Tritrichomonas foetus infection in cows from dairy herds in the state of Pernambuco, Brazil. In total, 383 samples of cervico-vaginal mucus were collected from cows on 21 herds in 19 districts.

Serologic survey of infectious diseases in populations of maned wolf (Chrysocyon brachyurus) and crab-eating fox (Cerdocyon thous) from Aguas Emendadas Ecological Station, Brazil.

Domestic dogs are reservoirs for many infectious diseases and may represent a potential source of infection for wild canid populations. A serologic investigation of antibodies to Toxoplasma gondii, Neospora caninum, Brucella abortus, and Leptospira spp. was conducted on three maned wolves (Chrysocyon brachyurus) and seven crab-eating foxes (Cerdocyon thous), all free-living, at the Aguas Emendadas Ecological Station (ESECAE), Federal District, Brazil, between February and October 2006.

Prevalence and risk factors associated to infection by Toxoplasma gondii in ovine in the State of Alagoas, Brazil.

The aim of this study was to evaluate the prevalence of anti-Toxoplasma gondii antibodies and to identify risk factors associated to the infection in the three meso-regions of the State of Alagoas, Brazil. A total count of 23 towns and 27 meat sheep farms were visited where blood samples were collected in order to perform the indirect immunofluorescence test to evaluate the antibodies presence. Questionnaires exploring the production system and nutritional, sanitary, and reproduction handling were handed out.