XFG causes a severe sore throat and hoarseness, hence the “razor blade COVID” nickname. Symptoms common to other variants ...

The "probability" of a COVID-19 epidemic trend growing in California is 99.52%, according to the most recent CDC data.

Federal data released Friday reveals that COVID-19 is trending upwards in most states, with emergency department visits ...

COVID-19 cases are rising across the United States, driven by new variants Stratus (XFG) and Nimbus (NB.1.8.1). While Stratus ...

Some regions of the United States are experiencing higher rates of positive COVID-19 tests than others, though reporting has ...

Summer 2025 COVID variant NB.1.8.1 causes severe razor blade throat pain. Expert explains 5 key facts about symptoms, transmission and prevention.

Reported symptoms of NB.1.8.1 are similar to other COVID-19 strains, but one distinctive complaint is a severe sore throat, sometimes described as “razor-blade throat fatigue.” ...

The “razor blade sore throat” was a common symptom when the variant cropped up in China, WebMD reported and has been found in cases worldwide. But doctors said that the throat isn’t actually ...

Updated: Jun 18, 2025 / 02:10 PM EDT (AP) — The COVID-19 variant that may be driving a recent rise in cases in some parts of the world has earned a new nickname: “razor blade throat” COVID.