The relative risk of bacillary dysentery for every 5 °C increase in temperature under different climatic conditions. There was almost no rainfall under low-temperature conditions, and it was impossible to carry out a stratified analysis of precipitation. HHh, high temperature and high humidity; HLh, high temperature and low humidity; LHh, low temperature and high humidity; LLh, low temperature and low humidity; HHw, high temperature and high wind speed; HLw, high temperature and low wind speed; LHw, low temperature and high wind speed; LLw, low temperature and low wind speed; HHs, high temperature and high sunshine; HLs, high temperature and low sunshine; LHs, low temperature and high sunshine; LLs, low temperature and low sunshine; HHp, high temperature and high precipitation; HLp, high temperature and low precipitation.