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Two-dose passport 'almost worthless': Ottawa medical experts call for three-dose document
"[A] two-dose passport is almost worthless…You might as well just throw it away — or you bring the three-dose."
"Two doses, he said, are only about 20 per cent effective in protecting against Omicron infection"
Source: https://www.cbc.ca/news/canada/ottawa/three-dose-vaccine-passport-ontario-1.6323853
