Canadians are being urged to stay home to prevent the spread of the new coronavirus, but experts say social distancing isn’t enough to combat the disease – we need to be doing more testing, too. “Testing is essential,” said Craig Janes, director of the School of Public Health and Health Systems at the University of Waterloo. “Without testing, you don’t know what’s going on in your community and you also can’t respond out there to isolate clusters, and self-isolating, quarantining households, that sort of thing.” The World Health Organization agrees. “You can’t win a football game by defending, you have to attack as well,” said WHO director-general Dr.