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Nimbus COVID Variant Makes Up 37% of U.S. Cases as U.K. Prevalence Doubles

Health authorities attribute the rapid spread of Nimbus to spike protein mutations that boost transmissibility without increasing disease severity.

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COVID-19 New Variant Causes ‘Razor Blade’ Pain With Sore Throat. Here’s What You Need To Know About It (Credits: Pexels)
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Overview

  • Nimbus has been detected in the U.S., U.K., Australia, India, China, Singapore and Thailand since January, reflecting its rapid global expansion.
  • Many patients report a distinctive “razor blade throat” symptom marked by intense sore throat pain, though clinical data show no rise in severe outcomes.
  • The World Health Organization classifies NB.1.8.1 as a variant under monitoring and continues to assess global risk as low despite slight upticks in hospital admissions.
  • Current COVID-19 vaccines remain effective against Nimbus, providing protection against severe illness despite its mutations.
  • The U.S. CDC and UK Health Security Agency recommend maintaining vaccination coverage, masking in crowded settings and good ventilation to limit transmission.