Why the idea of social bubbles might need to be re-evaluated

As Ontario moves forward with its reopening plans and more people get together with friends and family, some experts say the province needs to re-evaluate how these supposedly self-contained groups of 10 work in reality. https://www.cbc.ca/news/canada/ottawa/social-bubble-reevaluating-covid-19-1.5676467?cmp=rss

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