回應友的回應/指責，疫控政策是動態的，不應是一招用到底，疫苗接種率提升之後就應該改變政策了。 只引用兩份文獻，總結文章太累也沒人看....
COVID-19 Mortality and Vaccine Coverage - Hong Kong Special Administrative Region, China, January 6, 2022-March 21, 2022 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9008266/
Vaccine effectiveness of one, two, and three doses of BNT162b2 and CoronaVac against COVID-19 in Hong Kong: a population-based observational study https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(22)00345-0/fulltext
YouTube黑畫面：https://youtu.be/7N0-PurmNdI
