The relevant piece for most people to know is that based on data from a short time period, people were 20x less likely to get symptomatic COVID if they get the vaccine. The exact number will probably change a bit as more time goes by and more data comes in, but 20x is the ballpark.

Things we still don't know:

- Does the vaccine also stop you from contracting the virus asymptomatically and spreading it? People enrolled in the trial were only told to get tested if they showed symptoms.

- How long does the immunity from the vaccine last? We won't know this for some time.