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Adler, B., History of Leptospirosis and Leptospira. In: Adler B., ed. Leptospira and Leptospirosis. Berlin, Heidelberg: Springer Berlin Heidelberg, pp.

Almeida, DS, Paz, L.N., de Oliveira D.S., Silva, D.N., Ristow, P., Hamond, C., Costa, F., Portela, R.W., Estrela-Lima, A. and Pinna, M.H., Investigation of chronic infection by Leptospira spp. in asymptomatic sheep slaughtered in slaughterhouse. PLoS One, 14(5), e

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Arteaga-Troncoso, G., Jiménez-Estrada, J.M., Montes De Oca-Jimenez, R., López-Hurtado, M., Luna-Alvarez, M., Hernandez-Andrade, L., Moreno-Alfaro, A., Galan-Herrera, J.F., and Guerra-Infante, F.M., Seroprevalence and risk factors associated with within-flock transmission of Leptospira interrogans in transhumant farming systems in Mexico. Epidemiology and Infection, (13), pp.

Azhari, N.N., Ramli, S.N.

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Abstract

With the aim of measuring preescapular lymph node response in bovines vaccinated with either S19 or RB51 Brucella abortus strains vaccines, two herds were selected. About 40 females were divided in two groups of 20; group 1 was vaccinated and group 2 left as unvaccinated control. Vaccinated group, 3 and 6 months females were vaccinated with 5x10¹⁰ Colony Forming Units (CFU) dosage and >6 with a 3x10⁸-3x10⁹ S19 strain. For the second herd same age females and dosage was used but applying RB51 strain. Vaccines were subcutaneously applied at mid third on left side of the neck. Preescapular lymph nodes were measured in length and wide at 90 and days after vaccination. Results were analyzed by Chi-square. At 90 days brev vaccine, lymph nodes dimensions were cm widex cm length and for unvaccinated x cm. No statistical differences were found (p>) among vaccinated and unvaccinated controls. After days brev vaccine similar results were found with RB51 for both groups

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Abstract

Toxoplasma gondii is widely prevalent in sheep and their products pose a risk to public health. The aim of this study was to identify the seroprevalence and risk factors associated with T. gondii infection in sheep in Veracruz State, Mexico. The study was cross-sectional and it was carried out in thirteen municipalities distributed in three regions of Veracruz State. A total of blood samples were collected from four districts of Veracruz State and analyzed for T. gondii antibodies using enzyme-linked immunosorbent assay. Total seroprevalence was % (/; % CI = ). Seroprevalence by the municipality was % to % and for the district was % to %, respectively. Age, breed and productive status were identified as risk factors associated with T. gondii infection significantly. The infection by T. gondii is widely present in the districts of the Veracruz State with a high seroprevalence and risk factors associated with infection.

Key Words: Enzyme-linked immunosorbent ass