Epidemic disaster is one that resulted from the massive prevalence of some infectious disease,and all the way the enemy of health and life safety of whole human beings.During the period from Sui,Tang through Five Dynasties with relative warm climate,epidemic diseases were mainly smallpox,malaria,diarrhea.By comparison with the former and the latter periods,the epidemic prevalence in the period was relatively sparse and occurred in summer and autumn,with 12.4%average frequency of epidemic disasters and the lowest frequency in the eighth century.As for the geographical distribution of epidemic d...
