ITGAX and infection: Six hours later, the mice were infected with increasing inoculums of IAV and at 18 hours post infection (p.i.), CFSE+CD11c+MHC-II+ migratory rDC and CFSEnegCD11c+MHC-II+ LNDC were FACS purified from the pooled draining LN and analyzed by RT-PCR for IAV NS2 mRNA expression.