A descriptive analysis of the Spatio-temporal distribution of intestinal infectious diseases in China

Mao, Ying; Zhang, Ning; Zhu, Bin; Liu, Jinlin; He, Rongxin

On the other hand, the high-risk areas for different IIDs were mainly located in the Beijing-Tianjin-Tangshan (BTT) region, Yangtze River Delta, south and west China. The former two sites are developed areas with extensive urbanization, which attract larger mobile populations characterized by low immune systems, poor living environments and living conditions, and poor health and knowledge of epidemic prevention measures. The hot spots for HFMD, OIDD, dysentery and Hepatitis E are located in the BTT region and Yangtze River Delta [39] . South China is located closer to the equator with a subtropical monsoon and tropical monsoon climate, which are characterized by high humidity, temperature, rainfall, and wind speed. IIDs are strongly correlated with the climatic character of south China [40] , which is a high-risk area for HFMD, OIDD, and TAP. The high-risk areas for TAP were located in southwest China (Yunnan, Guizhou, and Guangxi), which are also the most likely cluster areas and HH cluster areas. The main reasons are that southwest China borders Southeast Asia (Vietnam, Laos, and Myanmar), which has a high-risk population due to low sanitation. Moreover, the population of southwest China has a medical history of TAP and very poor climatic, geographical (Karst landform) and sanitation conditions.