When doing water changes/tank maintenance I try my best to minimize contact with tank water (gloves, etc.), try not to splash water outside of the tank, and wash my hands thoroughly after I'm done, but I was wondering if I should also be sanitizing the area around the tank in case family members/friends (who aren't aware of fish diseases) touch the potentially contaminated surface and get infected.

If anyone has information about whether Fish TB/other diseases could survive outside the tank in significant levels it would be greatly appreciated!