Now, the spread of infection is not monitored by how many people test positive for coronavirus. Few people are still being tested, and there is no longer a system for registering this.
Therefore, the NIPH has found another way to monitor the spread of infection, in addition to looking at how many people are hospitalised, namely on faeces in the sewers. Samples are taken from untreated water at treatment plants in different parts of the country.
(Translated with DeepL.com)
src: Bob Moran