GCSE Biology - What Are Vaccines? Are They Safe? How Do They Work? Vaccines Explained #39

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Published 2018-12-07
How do vaccines work? What's heard immunity? And what are the pros and cons of vaccination?

All Comments (21)
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  • He says 'thank you for watching' me: thank you for making this video
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  • I love how I got advertised for avast antivirus before watching this video...
  • This is a really great video! I really appreciate the time you must all take to make them! Just to point out, there's a spelling mistake at 0:15 - it should be 'immune', not 'immue'(!) Short rant over; I love your videos! Thank you!
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  • @untitled_2.012
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  • @StudyNovaa
    Could I use these to study for the other CAIE IGCSEs? Or is the content too different? (The ones with letter grades not numbers?)
  • @yimello_
    2:21 what does this mean? Such as what is the "host" ?