Plague And Changes In Medieval European Society And Economy In The 14th And 15th Centuries
Boroda, Krzysztof (University of Bialystok)
Dergimizin Yayınlanan Sayıları, Vol.10:1 (2008)
Diseases have always been inherent in humankind although not always have they developed into epidemics widespread enough to affect the history of human societies. Sometimes, however, it has happened that a certain endemic disease would become epidemic or even pandemic and then its effects spread over many spheres of human life and were felt for a long time.
The vast majority of diseases is endemic and they rarely change into epidemics or pandemics unless favourable conditions exist, such as the fact that the whole population is not naturally immune to a disease. Other factors conducive to the outbreaks of epidemics or pandemics include poor hygiene, inadequate methods of prevention, poor quality of food, high population density, greater mobility of people, but also the way the disease itself is transmitted.