CCL2 and COVID-19: Early reports from COVID-19 patients also indicates that chemokines are elevated25 and MCP-1/CCL2 and IP-10/CXCL10 have been implicated in COVID-19 patients25, demonstrating that K18 hACE2 transgenic mice replicate cytokine and chemokine storm traits observed in humans, including recent reports of cytokine and chemokine production in human bronchoalveolar lavage fluid40–42.