Doctors have suggested the viral illness which makes people feel like they are 'swallowing razor blades' may be the Covid NB.

The National Department of Health has urged South Africans to not be concerned about the new Covid-19 variant, known as NB.1.8.1, which has mostly been detected in Asia.

Sharp throat pain that feels like swallowing razor blades—this symptom is particularly noticeable in infections with the new ...