Public health officials say early data show ‘high’ protection from first shot

Canadian researchers say Pfizer vaccine's second dose can be delayed because the first is highly effective, early data that Canadian health officials are looking at.

Deputy Chief Public Health Officer Howard Njoo, pictured Jan. 14, says discussions about delaying the second dose are 'ongoing.'The Hill Times photograph by Andrew Meade

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BY SAMANTHA WRIGHT ALLEN

February 18, 2021

Canada’s public health officials are in “live” discussions but not offering a position on doling out single doses of the COVID-19 vaccine, rather than planning for the two shots at the recommended interval, amid vaccine sca...

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