A new Covid-19 strain, NB.1.81, is now in the United States. It already caused a surge of hospitalisations in China. The ...

A new COVID variant - NB 1.8.1 - is creeping across the country; here are the symptoms to watch for, and vaccinations you'll ...

SEOUL: Despite the recent surge in the number of Covid-19 cases across parts of Asia, K-pop stars, including G-Dragon, Le ...

Here is what is known about the new Covid NB.1.8.1 variant from cases in the UK, symptoms, what the World Health Organisation has said and more.

It now accounts for just over 10 per cent of global infections and could become the "dominant" strain next winter ...

This story was originally published by CalMatters. Sign up for their newsletters. By Lynn La, CalMatters Stanford scientists ...