在美国发现的新COVID变体NB1.8.1,在中国蔓延,但全球风险仍然较低。 New COVID variant NB.1.8.1 detected in U.S., spreading in China, but global risk remains low.

在中国首次发现的新的COVID-19变体NB1.8.1在美国若干州已经发现。 The new COVID-19 variant NB.1.8.1, first detected in China, has been found in several U.S. states. 虽然它正在中国迅速蔓延并造成更多的住院治疗,但没有证据表明它会导致更严重的疾病。 While it is spreading rapidly in China and causing more hospitalizations, there is no evidence it leads to more severe illness. 世界卫生组织对它进行监测,但认为全球公共卫生风险低。 The World Health Organization monitors it but considers the global public health risk low. 预计目前的疫苗仍将有效,但由于管制要求,获得疫苗的机会仍然有限。 Current vaccines are expected to remain effective, but access remains limited due to regulatory requirements.