As the world moves deeper into 2026, the viral landscape continues to shift with a restless energy, manifesting in the emergence of two new subvariants that have captured the urgent attention of the global health community: Nimbus (NB.1.8.1) and Stratus (XFB). These latest iterations of the SARS-CoV-2 virus are currently surging across populations on both sides of the Atlantic, characterized by an unsettling transmission speed and a clinical profile that is challenging the public’s perception of a “milder” pandemic phase. Driven by specific mutations that sharpen their ability to evade the initial immune response, these variants are rewriting the rules…
