CCL3 and COVID-19: The altered gut microbiota due to COVID-19 may flare up the early induced ‘Cytokine Storm’ elevating the levels of IL-1β, IL-6, tumour necrosis factor-α (TNF-α), monocyte chemoattractant protein-1 (MCP-1), and macrophage inflammatory protein-1α (MIP-1α) and Chemokine C–C motif ligand 3 (CCL3) [1, 3, 4].