Meteorological factors correlate with transmission of 2019-nCoV: Proof of incidence of novel coronavirus pneumonia in Hubei Province, China

Jianfeng Li; Linyuan Zhang; Zhihua Ren; Caihong Xing; Peihuan Qiao; Bing Chang

There has always been opposition to the occurrence and epidemic of virus (influenza) by water vapor pressure and RH (Prussin et al., 2018) . Water vapor pressure describes the mass of water vapor per unit of air (i .e. AH), while RH describes the ratio of actual concentration of water vapor to the maximum possible concentration, this ratio varies with temperature. Studies have shown that the relationship between water vapor pressure and RH is significant (Shaman & Kohn. 2009 ). According to their analysis, water vapor pressure explained 50% and 90% of influenza virus transmission and survival variability respectively, while RH explained 12% and 36% of variability respectively. In the study of establishing influenza-related mortality model, it is found that the change of water vapor pressure is the root cause of seasonal trend, while RH prediction is relatively insufficient (Shaman et al., 2010) .It is also reported that AH(water vapor pressure) is better than RH in virus inactivation. Causal Analysis of Global Influenza incidence data shows that water vapor pressure is a stronger driver than RH (Deyle et al., 2016) .