US FDA panel recommends redesign of Covid vaccine to target Omicron variant
美国FDA小组建议针对奥密克戎重新设计疫苗

Change would incorporate genetic material from fast-spreading strain into new boosters
这一建议如果得到美国当局批准，将为莫德纳和辉瑞公司生产新型疫苗铺平道路。