Depends on what you mean by 'swept through'. It is believed that Sars-1-cov was contained, because the people who caught pretty much all got very sick. Thus they were easy to quarantine, since they were in the hospital already. This would imply that sars-cov-1 never 'swept through' anywhere. However, should there be a mutation to sars-cov-1 which didn't make you ill, or very ill (I just had a runny nose for a few days) it is quite likely that it would spread unchecked. Because doctors weren't testing everybody with a runny nose for sars-cov-1 -- it was believed that you needed to be coughing to spread the disease, and this seems to be true or else a whole lot more people would have come down with the disease -- doctors could focus on testing those with severe symptoms.

But it sure doesn't seem to have made the people of Toronto immune to covid-2, consistent with the idea that sars-cov-1 was contained there.