Two infectious diseases doctors answer viewer questions about COVID-19 vaccines, including how much protection people get from the first dose and how variants may change that.
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COVID-19: How much protection is in the 1st dose of vaccine?
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covid-19 vaccinecovid-19 vaccine canadacovid vaccine canadacovid vaccine efficacycovid vaccine 1st dosefirst dose covid vaccinecovid vaccine questionscovid variantscovid-19 variantscovid vaccines variantsdelayed 2nd dosedelayed 2nd vaccine doseAstraZenecaAstraZeneca vaccinecovid-19 vaccine questionsCoronavirusCOVID19Canadacoronavirus canadacovid-19 canadacovid-19covid-19 updatesDr Lynora SaxingerDr Suzy HotaThe NationalCBC
