The oscillation-outbreaks characteristic of the COVID-19 pandemic

摘要

＜正＞SARS-CoV-2 has been circulating in the human population for more than a year and has caused over 150 million cases globally as of 1 May 2021. Although a lot of regions have relied on measures such as social distancing, contact tracing and quarantine to slow its spread [1],multidisciplinary researchers are actively engaged in understanding the dynamic of its transmission.