Romans Plagued by Parasites
Despite Sanitation innovations, Romans were riddled with worms and plagued by pests
But while these amenities might have made their cities more pleasant, new work by Dr. Piers Mitchell, a Paleopathologist from the University of Cambridge, suggests that they didn't make the Romans a lot healthier. He studied excavations of toilets and dumps from around the Roman world and found that various parasites, including intestinal worms and diarrhea-causing bacteria, as well as lice and fleas, were just as common in the Roman era as they were before and after.
Roman sanitation, in this way, seemed to have little impact on publica sanitas (public health).