The variant, NB.1.8.1, is projected to become the most prevalent strain of the virus in Ontario. Here’s how to keep yourself safe.

Painful sore throats have been a common symptom of previous COVID strains, but Nimbus is gaining attention for what some describe as excruciating pain. Patients have likened the sensation to swallowing razor blades or shards of glass. Other symptoms include fatigue, cough, fever, muscle aches and congestion.