What are the advantages and disadvantages of each group of SARS-CoV-2 vaccines?

The most prestigious scientific journal Nature published a feature article aimed to explain the differences among the more than 90 vaccines against SARS-CoV-2 being tested as of 4/30/2020, “The Race for CORONAVIRUS VACCINES” by Ewen Callaway (please see the link below) https://media.nature.com/original/magazine-assets/d41586-020-01221-y/d41586-020-01221-y.pdf The featured article compares and contrast an array of at list four main types of vaccines: Virus (inactivated and weakened), Viral vector (replicating and non-replicating), Nucleic acid (DNA and RNA), and Protein-based (protein subunit and virus-like particles) vaccines. Your assignment: visit the link and with the information provided plus what you know about vaccine type, answer: Briefly explain virus vaccines, viral-vector vaccines, protein-based vaccines, and nucleic acid vaccines. What are the advantages and disadvantages of each group of SARS-CoV-2 vaccines? How long would it normally take to develop a successful vaccine and why? Why the COVID19 vaccines were developed in such a short time? Compare and contrast virus RNA vaccines vs. viral-vector vaccines Read the article “If coronavirus vaccines arrive, can the world make enough? https://www.nature.com/articles/d41586-020-01063-8?WT.ec_id=NATURE-20200430&utm_source=nature_etoc&utm_medium=email&utm_campaign=20200430&sap-outbound-id=52A34E82E2F39FA5F7BFFE2FE5EA3F5300FE46C6 There is a newer review from September 2020 in the journal Nature, hopefully you can access it. https://www.facebook.com/328116510545096/posts/3423146171042099/?extid=QMZ6N8sJhgwL9gHb&d=n