Although the secretion of those chemokines can be attributed to various cell types [27], the elevated levels of IP-10 and MCP-2, which are known to play a role in chemotaxis and activation of T cells during viral infection [28], further support the presence of specific CD4 memory T cells in the subgroup of SUDV survivors with serum neutralizing activity. The gene discussed is CXCL10; the disease is viral infectious disease.