Strike

What the fourth strike of COVID can and can't do for you

What the fourth strike of COVID can and can’t do for you

This is an excerpt from Second Opinion, a weekly analysis of health and medical science news. If you haven’t registered yet, you can do so by clicking here. Fourth dose of COVID-19 vaccines distributed to more Canadians Eligibility is open nationwidebut research suggests there are limits to the effect it can have on the highly …

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