Why countries are moving so quickly on COVID-19 booster shots — and what Canada should do next

APOTEX VACCINE CLINIC

Emerging research from around the world has sparked new fears about the declining protection COVID-19 vaccines provide over time against infection from the highly contagious delta variant, prompting countries to move aggressively toward booster shots. 



from CBC | Health News https://ift.tt/38gE0L3

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