Daily numbers* of PCR tests, confirmed cases, and positivity rates in Japan, October-December 2020.

*The daily number of PCR tests and confirmed cases in Japan were obtained from https://www.mhlw.go.jp/stf/covid-19/open-data_english.html. (XLSX)* 日本每日聚合酶链式反应（PCR）检测量与确诊病例数数据来源于https://www.mhlw.go.jp/stf/covid-19/open-data_english.html，数据格式为XLSX。