2nd dose of COVID-19 vaccine over 80% effective against Delta variant: Dr. Hinshaw


Two doses of COVID-19 vaccine are over 80% effective against the highly contagious Delta variant and 91% effective against B.1.1.7 variant, Alberta’s Chief Medical Officer Health said.

Addressing concerns about the Foothill Medical Centre outbreak and vaccinated individuals testing positive for COVID-19, Dr. Deena Hinshaw said COVID vaccines provide excellent protection and dramatically reduce the risk for severe outcomes.

“Even after immunization, it is rare but possible to contract COVID-19. Thanks to vaccines, even then you are less likely to experience severe illness, hospitalization & death. While no vaccine is guaranteed to prevent 100% of any illness, these vaccines are very protective,” she said in a statement posted on Twitter.

Dr. Hinshaw further added “It appears that all but one case is hospital-acquired, so cases were in hospital for other reasons before their infections. I’m glad to see 1 of the 2 units came off outbreak on Wednesday.”

Alberta has so far identified 47,598 variant of concern cases including 262 positive cases of Delta or B.1.617 India Variant.

According to Alberta Health Services, currently, 2,585 cases of the variants of concern are active across the province and the variant cases have so far killed 232 people.



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