Table 1. Experimental setup.

Genetic background	IFN-γ stimulation	Control strain WA(pTTS, pP60)	Virulent strain WA(pYV)	Mock
C57BL/6	No	3	3	3
BALB/c	No	3	3	4
C57BL/6	IFN-γ	3	3	3
BALB/c	IFN-γ	3	3	4

The table summarizes the number of replicates per group. The microarray data comprises genetic background of the mice (C57BL/6 and BALB/c), IFN-γ stimulation, and two Y. enterocolitica strains. The Y. enterocolitica strain WA(pTTS, p60) is a non-virulent bacterial strain and WA(pYV) is a virulent strain. The non-virulent strain has been engineered as a derivative of WA(pYV). Mock has no infection and serves as a control.