新型COVID-19变种在23个国家蔓延. New COVID-19 variant spreads across 23 countries.

在23个国家发现了一种新的COVID-19变异,号为"小鼠". A new COVID-19 variant, nicknamed "cicada," has been identified in 23 countries. 这种超变异的菌株是Omicron后裔,在广泛传播之前一直处于休眠状态,促使卫生官员监测其影响和潜在逃避免疫力. The hypermutated strain, a descendant of Omicron, remained dormant before spreading widely, prompting health officials to monitor its impact and potential to evade immunity. 虽然症状包括发烧和呼吸系统问题,但没有确定的证据表明死亡率增加. While symptoms include fever and respiratory issues, no definitive evidence of increased lethality has been confirmed.