Spain last month reported its highest number of Covid-19 cases, with 372,766 reported on Jan.
As schools began to reopen in November and early December, India’s third Covid-19 wave forced them to again close.
The National Wastewater Surveillance System monitors wastewater for disease in 19 states.
The sites are not all testing daily, but because studies show that about 80% of people with Covid-19 shed viral DNA in their feces, this kind of data is considered a good indication of exactly how much disease is in a community.
The other metric people will be able to see is how many detections there were over those 15 days — how many samples tested positive at all.
A total of 670,186 Covid-19 tests have been administered inside the “closed-loop” system since Jan.
The person, who was not identified by authorities, had worked recently at the Beijing Ditan Hospital’s emergency quarantine section.