The most recent COVID-19 wastewater study from the University of Saskatchewan shows a drop in the amount of COVID-19 virus in sewage samples taken from Saskatoon, North Battleford and Prince Albert. The Global Institute for Water Security's report released Monday afternoon showed a decrease of 55.8 per cent in viral RNA (Ribonucleic acid) in Prince Albert's wastewater samples compared to the previous reporting period. The most recent testing period for the city was from Nov. 16 through Nov. 22.