How does herd immunity work? [CBC News Explainer]

CBC' Manitoba's Teghan Beaudette explains how herd immunity works and prevents outbreaks of infectious diseases.

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[Hanzolot]

Great job CBC. Ignore the trolls and keep educating!

[frugalmum]

Very emotion driving background music choice.

[billiamc]

An very interesting fact...the more humans medicate honeybees the worse problems honeybees have...shouldn't we be learning from our mistakes?

[normanfacy]

ha ha yep anti vac 's people as I thought there would be. I love your first hand research on the topic.
Your conspiracy theories . If your in touch with your community you would know ya muppets !