The relationship between the serological prevalence of strangles disease with the parameters of age, gender, breed, respiratory disease, and geographical region in Tabriz area

Strangles is a prevalent infectious and contagious disease among Equidae that is caused by Streptococcus equi subspecies equi. This study was conducted on 184 horses that were studied in terms of carrying S. equi and its frequency among the horse population kept in equestrian clubs around Tabriz. The serum samples were collected from different equestrian clubs and were assayed using an iELISA (Indirect Enzyme-Linked Immunosorbent Assay) test for anti-SeM antibody in Streptococcus equi. The relative frequency of carriers was 53.3% in stallions and 24.5% in mares (p0.05). The results of Chi-squared test showed that the most positive results were observed in Arpadresi area of Tabriz city (p