What Was The Song Dynasty Plagued By?

What Was The Song Dynasty Plagued By? Song Dynasty had occurred strong infectious plagues about 293 times, including typhoid fever, seasonal disease, Tianxing plague, typhus fever, dysentery, smallpox, leprosy, measles, epidemic parotitis, ancylostomiasis, pestilence, tuberculosis, animal epidemics and so on, which are known as plagues. What 3 innovations affected the Song Dynasty? The Song period