"In vitro antimicrobial activity against equine Lawsonia intracellularis strains" was a recent article published by the Equine Veterinary Journal. The authors are C.E.R. Pereira, T.P. Resende, E. Vasquez, L.M. Lund, R.M.C. Guedes, and C.J. Gebhart.
"Lawsonia intracellularis is the aetiologic agent of equine proliferative enteropathy (EPE). This emerging equine disease leads to diarrhoea, severe protein loss and can result in death if left untreated. Timely treatment of EPE is critical for recovery from the disease, and hence, information about antimicrobial susceptibilities of equine L. intracellularisstrains to antimicrobials used in horses is needed. However, L. intracellularis is an obligately intracellular bacterium and so must be isolated and maintained in cell cultures."
The authors stated that their objective was to determine the in vitro antimicrobial activity of 14 antimicrobials against two equine L. intracellularis strains.
The authors noted that this is the first report of antimicrobial susceptibility patterns for equine L. intracellularis strains.
You can get access to the complete article here from Wiley online library.