The monoclonal antibody treatment is likely what helped Joe recover so quickly.

It's amazing how quickly people will disregard the benefits of being healthy (usually because they're too lazy to do the work it requires).

My guess, being healthy is what allowed him to recover so quickly.  I know about 8 people in my neighborhood alone who take care of themselves, have had covid, and had a similar experience.  A few tested positive with zero symptoms.

Yes, I also know people who have died from it, including family members.