As part of the innate immune response against virus infections targeting the respiratory tract, such as influenza virus or RSV infection (28, 30, 32), JEV infection of porcine NEC also induced several chemokines (CCL2, CCL5, and CXCL10), which would direct the migration of monocytes to the site of infection. This evidence concerns the gene CXCL10 and viral infectious disease.