discussion board/ vaccine

 Watch the  TED talk on "How Vaccines Work" andHerd Immunity (Click on the link to watch the videos)and write a short report (200-250 words, in your own words) on what you learned and understood from this talks and your perspective on the topic. Your perspectives on the topic must be supported with evidence/example  either from your text book, research articles or authentic websites.Citations must be provided for such information.  Format your citations as per MLA citation style. The citations will not count towards your recommended document length