Some cases of roseola may be avoided by staying away from infected individuals.
Most of the time, roseola clears up on its own without any long-term effects. Rarely, it can lead to a more serious infection, including:
Roseola can be passed to other children who have not already been exposed to the virus. No one knows for sure how roseola is spread from child to child. Experts believe it is probably transmitted in secretions from the nose and mouth.