Strategies for reopening in the forthcoming COVID-19 era in China
The transmission of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the culprit pathogen of coronavirus disease 2019 (COVID-19), has resulted in more than 0.43 billion cases and 6 million deaths globally. Compared with other existing variants of concern, the Omicron variant is characterized by significantly greater infectivity (Ro ≈ 6), greater tropism of the upper respiratory tract and lower severity of human infections. These characteristics of the Omicron variant are the basis upon which several developed countries are considering reopening.