The number of cases, hospitalizations, and deaths in the United Kingdom due to COVID-19 has significantly increased from August, and is rising every week. In the United States, the situation is more ...

Mutations are thought to have made the variant more infectious than previous strains ...

The XFG variant is not a new, supercharged strain, but rather a recombinant variant that virologists have been tracking globally.

UK COVID-19 cases rose 13.5% in the week to October 7, with 3,942 cases recorded so far this month. Deaths increased 46.4%, ...

LONDON — A highly contagious new variant of the coronavirus is causing countries in Europe and elsewhere to block travel from Britain. The U.K. last week warned of a new coronavirus variant that is ...

As Coronavirus cases soar across the UK, two women explain what it's really like to catch the new XFG strain, otherwise known as American Covid or Stratus (national story) ...

Cases of so-called ‘American Covid’ are on the rise in the UK. The strain is officially called XFG, or ‘Stratus’, and is the most common variant in North America, hence the name. It might soon need to ...

A new study provides early evidence that a Covid-19 vaccine might be effective against two new coronavirus strains first identified in South Africa and the UK, despite a concerning mutation. The two ...