Ottawa's medical officer of health says the public health authority may use cellphone data to find out whether people really are self-isolating.
Dr. Vera Etches says the agency is trying to get a better handle on whether people are following the advice to stay home and away from others.
She says one way to do that is with polling, but they are also looking at ways to use ``electronic data'' to see if people are congregating in public spaces or moving about.