As the world grapples with yet another surge in COVID-19 infections, a newly identified variant, designated NB.1.8.1, is rapidly spreading across multiple regions, raising fresh concerns among public health officials and policymakers.
As the world grapples with yet another surge in COVID-19 infections, a newly identified variant, designated NB.1.8.1, is rapidly spreading across multiple regions, raising fresh concerns among public health officials and policymakers.






