加拿大疫情有救了！两款口服药即将上市！世卫突发最新警告！

新闻源：

https://globalnews.ca/news/8420560/canadians-18-covid-booster-omicron-naci/

https://globalnews.ca/news/8423604/canada-merck-pfizer-covid-antiviral-pills/

https://financialpost.com/pmn/business-pmn/who-tells-asia-pacific-to-brace-for-omicron-as-variant-spreads?utm_source=break.ma&utm_medium=break.ma