The content originally appeared on: CNN China, the country where Covid-19 was first detected nearly two years ago, remains determined to eliminate the virus inside its borders, with officials there showing no signs of backing down. Despite fully vaccinating more than 75% of its population, China is sticking to its stringent zero-Covid strategy, including closed borders, lengthy quarantine measures for all international arrivals and local lockdowns when an outbreak occurs. On Tuesday, the northwestern city of Lanzhou, with a population […]