The season should not be shut down.
Obviously, we have an issue with one team.
This is where you get all teams in contact tested. Those teams might need to do makeups down the road as they await results (basically, go against what happened yesterday).
This is why rosters are expanded and we know we have a huge pool of guys who can and want to play.
Now, hopefully all these protocols were already in place ...but this is MLB. So, who knows?
If anyone didn't think this would happen they are fooling themselves. Again, without testing we wouldn't know any of these guys had it most likely.
Just like with regular jobs, you have protocols in place to keep a business moving. Hopefully MLB had this thought out ahead of time. That is 50/50 .