Protective efficacy of vaccination with Neospora caninum multiple recombinant antigens against experimental Neospora caninum infection

Protective efficacy of vaccination with Neospora caninum multiple recombinant antigens against experimental Neospora caninum infection.

Protective efficacy of vaccination with Neospora caninum multiple recombinant antigens against N. caninum infection was evaluated in vitro and in vivo. Two major immunodominant surface antigens (NcSAG1 and NcSRS2) and two dense granule proteins (NcDG1 and NcDG2) of N. caninum tachyzoites were expressed in E. coli, respectively. An in vitro neutralization assay using polyclonal antisera raised a...

Recombinant Subunit Vaccines against Neospora caninum

Experimental infection of sheep with Neospora caninum oocysts.

The purpose of the present study was to investigate the potential of Neospora caninum oocysts to infect sheep and determine whether N. caninum DNA could be detected by polymerase chain reaction (PCR) assay in blood and brain of sheep after oocyst inoculation. Six ewes were inoculated per os with 10(4) N. caninum oocysts, whereas 2 ewes served as uninoculated controls. All sheep were bled weekly...

Experimental infection with Neospora caninum in pregnant bitches.

In this study, transplacental transmission of Neospora caninum in bitches at different stages of pregnancy was evaluated. Three bitches were inoculated in the 3rd week and three in the 6th week of gestation with 10(8) tachyzoites of N. caninum (Nc-1 strain). All the infected bitches and at least one of their offspring presented anti-N. caninum antibodies according to the indirect fluorescent an...

Neospora caninum and neosporosis

Neospora caninum is a protozoan cyst forming apicomplexan parasite that causes neosporosis, notably in cattle (Bos taurus) and domestic dogs (Canis familiaris) [1,2]. It is closely related to Toxoplasma gondii and has emerged as a major cause of reproductive failure in cattle worldwide [2]. The parasite was first described in a dog with encephalomyelitis and myositis [1] and was later described...