Microbiologist Charles Gerba and his research team at the University of Arizona determined there's little difference whether you leave the lid up or down ... are in the toilet bowl out of it." ...

Scientists at the University of Arizona decided to investigate whether closing the toilet lid before flushing ... we scrub our toilet bowls with Lysol and stock up on toilet tank disinfectant ...

“Our study demonstrated that lid position (up or down) prior to flushing ... of the effectiveness of cleaning the toilet. “Cleaning of the toilet bowl with a disinfectant (formulated ...