Vaccinations - GCSE Biology (Revision for 2020)
Learn how vaccinations work and how they can allow populations to achieve herd immunity. Download the accompanying workbook from www.emmatheteachie.co.uk to complete tasks as you watch & build your revision notes.
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**This video is for the topic of Infection and Response for GCSE Biology and Combined Science (9-1) - it is written for the AQA specification but overlaps with other exam boards.**
We’ll start with how vaccinations work! I’ve broken this down into four stages to show how vaccinations prevent people from getting diseases.
Then we’ll learn about herd immunity. This is an important concept, so we’ll take a look at an example of a population (note, that we are normally talking about much larger populations than shown!).
And finally, test your understanding with the quick questions and answers - perfect to see what’s stuck and what needs another look.
I hope this video helps you understand this topic a little better, let me know if you enjoyed it and what else you’d like to see from me!
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