Mycoplasma hyorhinis - not just a commensal
Although a commensal, M. hyorhinis may cause serious systemic disease through mechanisms that are not fully understood.
Although a commensal, M. hyorhinis may cause serious systemic disease through mechanisms that are not fully understood.
Knowledge of the dynamics of infection within the herd will allow implementation of better control strategies in affected herds.
Three factors must be taken into account when defining the viability of the elimination of M. hyopneumoniae on each farm: negative replacements, cost and return on investment, and risk of re-infection.
Some of the take-home messages of this article are: M. hyo transmits slowly within exposed populations, but pigs can shed for long periods of time.
More than 50% of all systemic samples tested by HPS PCR at the Iowa State University Veterinary Diagnostic Laboratory (ISU VDL) are positive.
Intranasal and intratracheal inoculation routes as well as aerosolization with foggers are discussed.