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Boston Marathon to test travellers with mixed COVID vaccine doses

September 24, 2021

A Canadian-based marathoner who requested anonymity has been informed by the B.A.A. that runners arriving at the Boston Marathon expo next month must provide proof that they have been fully vaccinated against COVID-19, or be tested onsite. Runners who received doses from different vaccine brands (which a significant number of Canadians have) must wait for test results before being admitted to the race expo. Running Magazine CA