Can Roseola be transmitted through an adult?
Toddler has Roseola/three day fever. Even though adults are immune to this virus, can an adult who watched her pass it on to another child?
My question was badly worded lol. Just wondering if my babysitter who watched her while she was sick could pass this on to another child.

Most adults have been exposed to the virus, and shed the virus for the rest of their lives. While an adult could have passed it on, there is no way to tell who could have transmitted it. It could have been a caretaker, parent, or someone in passing.
The virus isn’t usually life threatening, but watch for high fevers that can cause febrile seizures.
Yes, your babysitter could pass it on.