Razor Blade Throat Symptoms As Nimbus COVID-19 Variant Spreads

Published: Saturday, June 14, 2025 at 11:14 pm

**"Razor Blade Throat" Symptom Linked to Emerging COVID-19 Variant**

Reports of a severe sore throat, informally described as "razor blade throat," are emerging in connection with the spread of the NB.1.8.1 SARS-CoV-2 variant, also known as Nimbus. While not a formally recognized symptom, the anecdotal reports suggest a distinct, intense throat soreness. The variant is rapidly spreading in the U.S., and has already become the second most common SARS-CoV-2 variant, detected in approximately 37% of reported cases.

The World Health Organization (WHO) has designated NB.1.8.1 as a "variant under monitoring" due to its mutations and rapid global spread. The naming of variants has evolved, with the initial Greek alphabet system giving way to alphanumeric designations. The informal name "Nimbus" was coined on social media.

It's important to note that "razor blade throat" is an informal term, and not a definitive indicator of COVID-19. Various factors, including other viruses, bacteria, allergies, and even acid reflux, can cause pharyngitis, or throat inflammation. A medical evaluation is necessary to determine the cause of a severe sore throat, which may include testing for strep and SARS-CoV-2.

While the severity of the sore throat is not a reliable indicator of the underlying cause, a sore throat lasting longer than a week warrants medical attention. The NB.1.8.1 variant may be more transmissible, and the rapid spread of the variant supports this possibility. The same precautions remain relevant, including vaccination, masking in crowded areas, good ventilation, and frequent handwashing.

BNN's Perspective: The emergence of new variants and associated symptoms underscores the ongoing need for vigilance. While the severity of the "razor blade throat" symptom is not yet fully understood, it serves as a reminder that COVID-19 continues to evolve. Staying informed, practicing preventative measures, and seeking medical advice when necessary remain crucial for public health.

Keywords: COVID-19, NB.1.8.1, Nimbus, razor blade throat, sore throat, variant, SARS-CoV-2, symptoms, pharyngitis, health, medical, sore throat, Omicron, vaccine, transmission, WHO, CDC, public health.

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