New COVID-19 variant NB.1.8.1 sparks global health alerts
Zuko Komisa Image | Adobe Stock A new COVID-19 variant, NB.1.8.1, is now the main strain in China and is starting to show up around the world. This has led health experts to issue new warnings and advice on vaccine. First found in April 2025, NB.1.8.1 comes from the Omicron variant. It's causing a rise in hospital visits in China and has been detected in travellers in the US and […]