Uggla, Arvid
- Department of Cattle and Sheep Diseases, Swedish University of Agricultural Sciences
Abstract
Three four-week-old calves were used in a study on serological responses in combined Sarcocystis cruzi and Toxoplasma gondii infections. One calf (C1) was inoculated orally with 100,000 S cruzi sporocysts, another (C2) with 40,000 sporocysts, while the third (C3) acted as uninfected control. One hundred and five days later, all three calves were inoculated orally with 100,000 T gondii oocysts. The antibody responses to sarcocystis and toxoplasma during 210 days were recorded, using different serological assays. During the S cruzi monoinfection phase, positive antibody reactions were recorded in C1 and C2, using an klisa with soluble (cytoplasmic) T gondii tachyzoite antigen, while antibody reactions remained negative in the toxoplasma indirect fluorescent antibody test and in an klisa employing T gondii tachyzoite cell membrane antigen. However, the Sabin Feldman dye test also showed transient low positive titres for C1 and C2 at around day 39 after S cruzi inoculation. When using an klisa employing soluble S fusiformis cystozoite antigen, increased sarcocystis antibody counts were recorded for C1 and C2 starting two weeks after T gondii inoculation. Otherwise the three calves reacted as expected regarding the general antibody responses to the S cruzi and T gondii infections.
Published in
Research in Veterinary Science
1987, volume: 43, number: 1, pages: 127-129
SLU Authors
UKÄ Subject classification
Clinical Science
Publication identifier
- DOI: https://doi.org/10.1016/S0034-5288(18)30757-4
Permanent link to this page (URI)
https://res.slu.se/id/publ/145218