New Covid Strains XFG NB.1.8.1 Cause Subtle Throat Symptoms UK

New Covid variants known as XFG (Stratus) and NB.1.8.1 (Nimbus) are currently the most common strains circulating in the UK. These variants present symptoms similar to a common cold, such as cough, runny nose, and fatigue, but uniquely include a hoarse voice caused by laryngitis, along with razor-sharp sore throats and occasional loss of taste. Experts, including Dr. Kaywaan Khan and UK Health Security Agency officials, emphasize that these variants do not cause more severe illness than previous strains and vaccines remain effective. The World Health Organization classifies XFG as a variant under monitoring but rates its public health risk as low globally. Despite the symptoms overlapping with common colds or flu, early testing is advised, especially for vulnerable individuals, alongside continued precautions like mask-wearing and hand hygiene to prevent spread. Overall, while the virus continues to evolve, current data suggest these new variants do not increase severity but do require awareness due to their distinct symptom profile and increased transmissibility.