Publications by authors named "Stefany Lia Oliveira Camilo"
Article Synopsis
- SA-MCF is a serious disease in cattle caused by OvGHV2, with a global presence and potential reservoirs in wild boars.
- Previous detection methods for MCF used a CI-ELISA based on a specific antigen, but this study tested a new indirect ELISA specific to OvGHV2 antibodies in dairy cattle from Southern Brazil.
- The results showed that nearly 38% of farms had at least one seropositive cow, with intensified farming systems showing a significantly higher risk for seropositivity, suggesting a link between environmental factors and disease prevalence.
Article Synopsis
- This study investigates the presence of specific viruses linked to bovine respiratory disease (BRD) in high-yielding dairy cows in South Brazil, collecting 497 blood samples from unvaccinated cows across 39 herds.
- The results showed significant levels of neutralizing antibodies for the four viruses: BoAHV1 (71.4%), BVDV (56.3%), BPIV3 (96.8%), and BRSV (63.4%), indicating the viruses are commonly circulating in these herds.
- The findings suggest that implementing a vaccination program could help prevent BRD by enhancing immunity in both cows and their calves, as the levels of antibodies varied based on herd management practices.
This study aimed to determine the presence of antibodies against Mycobacterium avium subspecies paratuberculosis (MAP) in high-producing dairy cows, the presence of the pathogen in the feces, and the risk factors associated with the disease. Blood and fecal samples were collected from 708 dairy cows over 2 years from 54 herds located in five municipalities of Paraná, Brazil. The serum samples were evaluated for the presence of antibodies against MAP using enzyme-linked immunosorbent assay (ELISA).
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