New COVID-19 Variant NB.1.8.1: More Infectious, But Not More Severe?

A new COVID-19 variant, NB.1.8.1, is causing concern after a surge in cases in China. The variant, while more transmissible, doesn't appear to be more severe, according to the World Health Organization (WHO). However, the increase in cases in China is significant, with the proportion of A&E patients testing positive rising from 7.5% to 16.2% in recent weeks. The variant has also been detected in international travelers at several US airports, prompting monitoring by health officials. "While the transmissibility is higher, there's no indication this variant causes more severe illness," said a WHO spokesperson. The situation is being closely watched to assess the potential impact on global health.