Immunisation and 'herd immunity'
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Immunisation: Why we do it and how 'herd immunity' works

This is how vaccines work, why they’re important and what the phrase “herd immunity” actually means.

Produced and edited by Elise Wicker; art direction by Alice Grenié; filming by Derrick Evans; voiceover by Kat Collins; executive production by Lorna Hankin and Charlie Newland

  • 19 Jun 2019
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