TNF and infection: The chemokines Mcp-1 (Ccl2), Rantes (Ccl5), Mcp-3 (Ccl7), Ip-10 (Cxcl10), and Cxcl13 and the proinflammatory cytokines Il-6 and Tnf-α showed significantly elevated gene expression levels in C57BL/6J mice 7 days after infection, whereas no significant differences were observed 28 days after infection.