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Topic:Serological Surveys
Serological surveys for horses involve the collection and analysis of blood samples to detect the presence of antibodies or antigens related to infectious agents. These surveys are instrumental in understanding the epidemiology of diseases within equine populations, helping to identify exposure to pathogens such as viruses, bacteria, and parasites. Through serological testing, researchers can assess the prevalence of diseases, track their spread, and evaluate the effectiveness of vaccination programs. Common serological tests used in equine studies include the enzyme-linked immunosorbent assay (ELISA) and the virus neutralization test. This page compiles peer-reviewed research studies and scholarly articles that explore the methodologies, findings, and implications of serological surveys in equine health management.
Occurrence of antibodies to group specific chlamydia antigen in Finnish sheep, cattle and horse sera. A serological survey on the occurrence of group-specific chlamydial antibodies in random sera of Finnish sheep, cattle and horses was performed. The whole material consisted of 1347 serum samples, including 432 ovine, 454 bovine and 461 equine sera. The sera were sent to the laboratory for various serological tests during 1968–1972. Of the ovine sera 9.5%, bovine 12.8 % and equine 7.1 % showed a titer ≥ 1:16 in the complement fixation test. No definite geographic differences could be found in the distribution of the herds which showed positive results. The ubiquity of chlamydial infections...
Survey of histoplasmin skin test reactions among horses in Mexico. In a 3-month period, 2,221 Mexican horses were skin tested for sensitivity to Histoplasma capsulatum antigen. The prevalence of reactivity was 7.9%. There was little evidence of a difference in geographic distribution of sensitivity. The prevalence of reactivity increased with age of the horse. This increment with age is thought to be a function of time exposure to the organism and possibly of selective survival of the horses.
Preparation of agglutinating antisera and fluorescent-antibody conjugates against Pasteurella tularensis in equines. The serological response in burros and horses to the viable LVS strain of Pasteurella tularensis was studied. High-titered agglutinating antisera and fluorescent-antibody conjugates were obtained in both groups of animals. Maximum titers were obtained in horses 14 to 21 days after the start of vaccination and in burros 21 to 28 days after the start of vaccination. The use of Woodhour's adjuvants or booster inoculations did not result in increased titers.
Comparative studies on the haemolytic and Treponema pallidum immobilizing complement activity in the serum of different species. Complement activity in the serum of eight species has been studied in two ways: by immobilization of sensitized with human or rabbit antibody and by haemolysis of sheep red cells sensitized with rabbit antibody. Serum of the pig, monkey and man was actively haemolytic but contained a heatlabile factor that immobilized unsensitized in the presence of guinea-pig complement and precluded the detection of immune immobilizing activity. Sera of other species, although without action on unsensitized treponemes, even with added guinea-pig complement, differed in their relative haemolytic and immobil...
