Waterloo Region will start contacting 12- to 17-year-olds Friday to book COVID-19 vaccine appointments “It allows us to monitor COVID infection in the whole community, whether or not symptoms are present or test results are available,” she explained.Folkema said that it will measure everyone’s data, not just those who go for testing.“So the concept here is that everyone poops, which means that by sampling and analyzing the wastewater signal, we can monitor the transmission of COVID-19 for everyone that contributes to the source system,” the epidemiologist explained.“And that includes those that never experience symptoms, other subgroups that perhaps choose not to get tested or have barriers to accessing services.”She said it will never.