Covid Variants Nimbus and Stratus Are Rising Rapidly — Plus Some Uncommon Symptoms
New Covid Variants Bring Distinct Symptoms A hoarse voice and intense “razor blade” sore throat are emerging as common signs of the latest Covid variants spreading across Britain and the US. The strains—XFB, nicknamed Stratus, and NB.1.8.1, called Nimbus—are driving a surge in infections, with cases doubling since August. In response, health authorities have launched…