A closer inspection of the bacterial species revealed only few pathogenic species. Of those, most were unable to survive over long periods of time. There was little to no risk for infection. As to the majority of bacteria found, they were common, and harmless, fecal and skin bacteria. Even high frequency use of a toilet could not develop pathogens in high enough levels to cause infection.
Although the finished product may appear almost the same, there are many reasons to consider going with a one-piece or two-piece toilet: A two piece model connects a separate tank and base/seat, which are bolted together on site, while a one piece toilet includes everything already attached seamlessly.