Infected stallions are asymptomatic and act as the principal source of infection as they mate with numerous mares and the carrier status may persist for many months or even years.
Diagnosis of CEM is achieved by PCR or culturing the organism from urethral fossa, urethra and semen of stallions and also clitoral sinus and clitoral fossa of mares. Two or one swab(s) from smegma of clitorial sinus and/or fossa are taken and transferred in AMIES transport media with charcoal at 4°C to a laboratory. The volume of the sample on the swab is not relevant as even low volume of smegma may harbor this pathogen.
Ghasemzadeh Nava, H., Salehi, T.Z., Eliasi, M.A., Gharagozloo, F., Rezagholizadeh, R. and Tajik, P.(2008) An outbreak of contagious equine metritis (CEM) from a stud farm in Iran: the first report of Taylorella equigenitalis isolation from Iran. 15 th Congress of FAVA, 27-30 October, Bangkok, Thailand, p 359-360
- George M. Garrity: Bergey's manual of systematic bacteriology. 2. Auflage. Springer, New York, 2005, Vol. 2: The Proteobacteria Part C: The Alpha-, Beta-, Delta-, and Epsilonproteabacteria ISBN 0-387-24145-0
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