We're still in the midst of the Coronavirus pandemic, and one of the things many of us are hoping for every day is more good news about a vaccine. What does the Coronavirus vaccine effort look like? How does that compare to the usual way vaccines are pursued and developed? How many are in process, what stage are they at, what approach do they take, and which ones look promising? What's "good enough" for a Cornoavirus vaccine when it comes to efficacy and safety? How quickly can we roll one out when we decide one works well enough to start...