• Postdoctoral Research Fellow, Department of Health, Kinesiology, and Applied Physiology, Concordia University
More than 70 per cent of the world’s population has received at least one COVID-19 vaccination. (Shutterstock)

The first line of vaccines was highly effective at restricting COVID‑19’s damage

New analysis answers questions about the ongoing effectiveness of COVID vaccines: How well they protect against infection, hospitalization and death months after initial doses or after a booster shot.

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