Accordingly, as shown in Table 2 strong induction of apoptosis-related pathways were involved in response to Salmonella infection at 4 days, such as IL-9 (anti-apoptosis), retinoic acid mediated apoptosis (pro-apoptosis), caspase family mediated apoptosis(pro-apoptosis), and LPS-stimulated MAPK pathway (pro-apoptosis). The gene discussed is IL9; the disease is Salmonella Infections.