The year 2020 brought us the global pandemic of COVID-19, which is not just a health crisis but a disruption to the fabric of society around the world. With no vaccine yet approved, other measures have been taken all over the world related to lockdowns, social distancing, and contact tracing to quarantine the infected individuals and suppress community transmission. The numerous challenges presented by this novel coronavirus, such as the incubation period, various symptoms, and asymptomatic superspreaders, have exacerbated the challenges of manual contact tracing.

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要求、政治或个人主义：是什么推动了 COVID-19 联系人追踪应用程序的成功？

2020 年给我们带来了 COVID-19 的全球大流行，这不仅是一场健康危机，而且是对世界各地社会结构的破坏。由于尚未批准疫苗，世界各地已采取其他措施，包括封锁、社会疏远和接触者追踪，以隔离感染者并抑制社区传播。这种新型冠状病毒带来的潜伏期、各种症状和无症状超级传播者等众多挑战，加剧了手动追踪接触者的挑战。