CBC News shows that Health Canada is expected to approve the important Oxford-AstraZeneca vaccine this week, which would make it the third COVID-19 vaccine approved in Canada. In South Africa, authorities have certainly paused rollout of this vaccine after a study found it offers only limited protection against the coronavirus variant first identified there.
The Oxford-AstraZeneca vaccine provides great good protection against the main type of coronavirus circulating in the UK. Trials suggest it protects against severe disease and there is some evidence it might also stop some people spreading the deadly virus.
However, early findings from South Africa suggest the vaccine may need updating to be a better match for some emerging new variants of Coronavirus Covid-19. This could certainly be true for other coronavirus vaccines, also.
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