Two years into the COVID-19 saga, we find ourselves amidst a new wave, a new variant, and a sea of questions. Have all the masks, the vaccines, and the boosters been for naught? What does the emergence of Omicron mean for the future of this pandemic? Let's dive into the heart of this scientific mystery and find some answers.
当新冠疫情在全球肆虐已近两年之际，我们似乎仍在寻找这场战“疫”的终点。许多人心中都有一个疑问：我们之前所做的努力——佩戴口罩、居家隔离、使用洗手液、接种疫苗和加强针——都到哪里去了？为什么我依然感染了新冠病毒？