China has been facing the spread of the highly contagious Delta variant since July 20, when a cluster of Covid-19 infections was detected among airport cleaning staff in the eastern city of Nanjing.
Since then, it has become the worst outbreak China has seen since 2020, spreading to more than half of the country’s 31 provinces and infecting more than 1,200 people. Delta-driven growing cases were seen as the biggest challenge of China’s zero-tolerance virus-free policy.
Local authorities responded by placing tens of millions of residents under strict closure, conducting massive testing and tracking campaigns, and restricting national travel.
And on Monday, the country reported 21 imported cases and zero symptomatic local transmission infections, the first time no local cases have been reported since July 16th. China maintains a separate count of symptomatic and asymptomatic cases and does not include asymptomatic carriers of the virus in the official count of confirmed cases.
If the trend continues, China could become the first country in the world to control a major outbreak of the Delta.
Double to zero-Covid
China is one of the countries, including Singapore, Australia and New Zealand, that have tried to completely eradicate Covid-19 within its borders.
Authorities closed borders to almost all foreigners, imposed strict quarantines for arrivals, and launched specific closures and aggressive testing and tracking policies to wipe out any cases that escaped the defenses. And for more than a year, these measures had been very successful in keeping cases close to zero.