They, and their shit and piss can also carry and spread tuberculosis. While they may have not been the main cause of the epidemics at the time, they certainly

They, and their shit and piss can also carry and spread tuberculosis. While they may have not been the main cause of the epidemics at the time, they certainly had some large part in it. The main part simply too many people packed too dense together in not so good conditions. And the horses giving a shit...