The new Covid strain, XFG, nicknamed Stratus, is becoming the dominant strain. The World Health Organisation has designated ...

A new variant of Covid, known as XFG or Stratus, is rapidly becoming the dominant strain in the UK, with experts warning it ...

A new COVID-19 variant named "Nimbus" has been detected in the U.S. and is spreading rapidly. Here's what to know about ...

Intense throat pain is a key symptom of COVID-19 variant NB.1.8.1, referred to as "razor blade throat." Here's what to know.