This paper describes a novel method for oral infection of mice using Listeria monocytogenes-contaminated food. The protocol can readily be adapted for use with other food borne bacterial pathogens.
Bou Ghanem, E. N., Myers-Morales, T., Jones, G. S., D'Orazio, S. E. Oral Transmission of Listeria monocytogenes in Mice via Ingestion of Contaminated Food. J. Vis. Exp. (75), e50381, doi:10.3791/50381 (2013).