Vaccine Development

Part 1: Research article  In this discussion board (DB), please post your original thread include the following in your discussion: Find at least 2 credible resources for vaccine development. The resource can be a video, government website, documentary, etc. Write the resources in APA format at the bottom of your original post.   For example, you can research Polio, MMR, Hep B vaccine among many others that have already been developed and tested. Summarize the information you gathered. Questions you may want to answer in your summary: What was the vaccine for? Did this vaccine save a couple lives or countless? What would happen if this vaccine was not found? What was the timeline from development to general use for the public? What precautions should be taken?  These posts need to be a couple of paragraphs and should not exceed a page  (minimum of 250 words required for full credit of original post).  Your original, first post must include the resource in APA format