COVID-19 appears to be on the rise in some parts of California as a new, highly contagious subvariant — featuring 'razor blade throat' symptoms overseas — is becoming increasingly dominant.

NB.1.8.1, a new COVID-19 variant that has caused concern among WHO officials, is now spreading in America, according to CDC data.

One key symptom can differentiate a Covid infection from hay fever. Although the signs of these conditions can somewhat overlap, there are ways to distinguish them. This year, millions of Brits have been suffered from irritating hay fever symptoms,