CXCL1 and infection: Similar to our previous report using JHMV infection of CXCL1 double transgenic mice 21, we found that Dox administration resulted in elevated CXCL1 transgene expression within the brains and spinal cords of double tg mice that was restricted to astrocytes and correlated with rapid and robust neutrophil migration to the CNS compared to Dox‐treated controls.