Covid-19 Infections appear to be going down but back-to-school infections could keep rates high. Press Democrat reports that wastewater detection of COVID-19 is down to 57-percent of their maximum historical value as of August 8th as opposed to 90-percent back on July 20th. However, doctors urge families to take precautions as kids go back-to-school such as staying up to date on vaccinations and practicing good hygiene.