I like to think that most people know enough to not travel when they already know they are sick (stop laughing, I'm an optimist) but it's not out of the realm of possibility for symptoms not to hit someone until they are already on vacation.
Our friends over at the Disney Food Blog took a deep dive into information to find out what would happen if you suddenly get sick with COID-19 while at Walt Disney World. They recently shared that information in this post
What Happens If You Test Positive for COVID-19 On Vacation in Disney World?
It is 100% worth the read before traveling so that you have an idea of how becoming positive on vacation would effect the rest of your stay. While we've talked family members getting sick at Disney in the past and how that can be dealt with. The health and safety guidelines for COVID-19 are a little different than what we have encountered in the past. This illness not only effects the vacation of the guest experiencing symptoms, but their entire in-room party and guests in other rooms that they may be traveling with as well.
What would you do if someone in your traveling party got sick at Disney now?