COVID-19 has taken the world by storm.  Infections are on the rise across several regions of the US and scientists are predicting this winter will be challenging and deadly.  Currently, there are no approved treatments, but scientists are committed to delivering an effective COVID-19 vaccine.  This commitment includes expediting the process of developing the vaccine.  Research the drug/vaccine approval process in the US, and answer the following questions (don’t forget to site your sources).

Who is responsible for regulating vaccines in the US?
Identify and summarize one of the steps in the approval process.
Should this process be expedited? Explain?