Even if the network of the molecular factors developed following a pathological event such as COVID-19 is complex and may change individually and during the disease progression, it has been reported that COVID-19 disease positively correlates with high levels of inflammatory cytokines, principally MCP-1/CCL2, IP-10, and anti-inflammatory cytokines such as IL-10 [12]. This evidence concerns the gene CCL2 and COVID-19.