Parent strain (SE#15h strain): | SE strains isolated from egg production farm environments (dust) and passaged and stored at CAF laboratories (phage type, 1 strain). |
SE#15e strain: | The SE#15h strain supplied to Osaka University of Pharmaceutical Sciences and returned after several passages. |
SE#15h-m | The SE#15h strain was administered orally to BALB/c mice. Four colonies were isolated from the digestive tractsof mice and named as the SE#15h-m strain. |
SE#15h-c | The SE #15h strain was inoculated via the intranasal route in laying hens. Four colonies were isolated from the chicken cecum and named as the SE#15h-c strain. |
SE Y-24 strain: | The SE strain supplied by Osaka Prefecture University (a patent strain). |
SE strains derived from human patients: Formalin-treated SE strains supplied by Izumiya of the National Institute of Infectious Diseases. |