Horses were vaccinated with adjuvanted recombinant SnSAG1 (rSnSAG1)and 5 control (sham vaccinated) horses were vaccinated with adjuvant only. The effect of vaccination with rSnSAG1 on in vivo infection by S. neurona was evaluated by challenging all the horses with S. neurona merozoites. The study showed that vaccination with rSnSAG-1 produced antibodies in horses that neutralized merozoites when tested by in vitro culture and significantly reduced clinical signs demonstrated by in vivo challenge (Ellison and Witonsky, 2009).
Ellison and Witonsky, 2009: Ellison S, Witonsky S. Evidence that antibodies against recombinant SnSAG1 of Sarcocystis neurona merozoites are involved in infection and immunity in equine protozoal myeloencephalitis. Canadian journal of veterinary research = Revue canadienne de recherche veterinaire. 2009; 73(3); 176-183. [PubMed: 19794889].
