Neospora caninum infection in cattle in the state of Amazonas, Brazil: seroprevalence, spatial distribution and risk factors.

Livestock in the Amazon has grown significantly and, although neosporosis in cattle has been reported worldwide, there is no information about N. caninum in production systems in the state of Amazonas. The objective of this study was to determine the prevalence of anti-Neospora caninum antibodies in cattle, their spatial distribution and the risk factors associated with N.

Serological survey and risk factors for Toxoplasma gondii infection in cattle from Amazonas, Brazil.

Beef cattle farming in the Amazon region has expanded rapidly, but information on herd health is still scanty. The purpose of this study was to determine the presence of anti-Toxoplasma gondii antibodies in cattle, its spatial distribution and the risk factors associated with the infection in the state of Amazonas, Brazil. Blood samples were collected from 1073 animals on 47 farms, located in 33 municipalities in the four state subpopulations.