COVID-19 present. And the samples didn’t pick up the subvariants scientists previously couldn’t identify.The viral load dropped 85.3 per cent in Saskatoon, 90.2 per cent in North Battleford and 65.7 per cent in Prince Albert, from the week prior.Toxicologist John Giesy, team lead at the USask Global Institute for Water Security, which takes the measurements, called the numbers good news.