Israeli technicians extract sewage samples from a manhole to trace the COVID-19 virus in central Israeli city of Ness Ziona, on Nov. 17, 2020. Israel's Ministry of Health reported 600 new COVID-19 cases on Tuesday, bringing the total to 325,355. (Photos: Xinhua)

Israeli technicians extract sewage samples from a manhole to trace the COVID-19 virus in central Israeli city of Ness Ziona, on Nov. 17, 2020. Israel's Ministry of Health reported 600 new COVID-19 cases on Tuesday, bringing the total to 325,355.

An Israeli technician extracts sewage samples from a manhole to trace the COVID-19 virus in central Israeli city of Ness Ziona, on Nov. 17, 2020. Israel's Ministry of Health reported 600 new COVID-19 cases on Tuesday, bringing the total to 325,355.

Israeli technicians extract sewage samples from a manhole to trace the COVID-19 virus in central Israeli city of Ness Ziona, on Nov. 17, 2020. Israel's Ministry of Health reported 600 new COVID-19 cases on Tuesday, bringing the total to 325,355.