面临变种的不确定性，小心一点没问题。如果必要，那就开放针对性的第三剂吧。
正是变种的不确定性，长期严格封锁将使独裁国家如中国北韩也渐渐无法承受，最终不得不祈求美国疫苗以为解决之道。
现在不仅是中国，北韩严格封锁了.
连群体免疫的瑞典都闭关了，加拿大蒙特利尔宣布紧急状态，BC省关闭酒吧，健身房。
以色列给60岁以上及体弱者开打第四针。
楼主的这个样本楼已经成为烂尾楼，现在的美国又朝着日增20万迈进了，人已经死了83万。
Sweden will implement tighter restrictions to curb Covid-19 spread
From CNN's Amy Cassidy and Henrik Pettersson
Sweden will tighten its Covid-19 restrictions to prevent further spread as Covid-19 cases rise, Prime Minister Magdalena Andersson announced Tuesday.
Starting on Dec. 23, bars and restaurants will be able to operate sit-down service only with mandatory social distancing, the prime minister said. Those without proof of vaccination will be limited to gathering in groups of eight people in those settings.
Employees will be advised to work from home if possible, she added.
The new restrictions come as worst-case scenario modeling from Sweden’s Public Health Agency estimates daily cases could exceed 15,000 by mid-January. In the last seven days (Dec. 14 to 20), Sweden has reported an average of 3,556 new coronavirus cases per day.
The agency has also recommended the government decide on restricting the number of people at private gatherings to 50 people in rented spaces, as well as introduce a requirement for foreign travelers to produce a negative Covid-19 test upon arrival to Sweden.
2 hr 6 min ago
Canada's British Columbia closes bars and gyms over rising Covid-19 cases
From CNN''s Raja Razek
A police officer directs the traffic outside a Covid-19 test site in Vancouver, British Columbia, Canada, on Dec. 18. (Liang Sen/Xinhua/Getty Images)
British Columbia, Canada's westernmost province, announced a series of restrictions to address the rising number of Covid-19 cases in the country.
A
news release from the Province said it would ban organized indoor social events and close gyms, bars, and nightclubs starting Wednesday.
Additionally, the Ministry of Health said it's postponing non-urgent scheduled surgeries starting Jan. 4.
"The provincial health officer is implementing additional measures to address rising COVID-19 case counts that could result in increased hospitalizations and critical care admissions and the potential to overstress the health-care system," the release said.
