Attempts by authorities to prevent the spread of the Black Death

Quarantine laws - people new to an area had to stay away from others for 40 days, houses were placed in quarantine where there had been an outbreak, strangers were not allowed to enter a village
Stopping street cleaning as they believed the smells from the waste would drive away any bad air
Banning events that attracted large crowds, such as religious processions
Creating huge burial sites where the dead would be buried in mass graves
All of these actions were difficult to enforce because the Church continued to have a lot of power, and individuals continued to follow the advice given by the Church