“…The large number of responses obtained in one month suggests that the method we used can garner useful information about travel and travel health risks not only for China, but, by extension, for any other geographic region. Such results allow the regionally-targeted dissemination of warnings about weather conditions, natural disasters (cyclones, earthquakes, tsunamis, typhoons, hurricanes, avalanches), epidemics, [23][24][25] civil unrest, 26 water safety, 27 altitude, 28 air quality, 29 local drug use laws, 30 mass gatherings such as large-scale religious events, [31][32][33] sports events, 34 and open air music festivals that breed outbreaks of communicable disease, accidents, violent assaults, and infrastructure breakdowns, 35 and inform travelers about geographic pockets of inadequate or unsafe health service availability. Time-targeted messaging can be applied to different world regions as mass travel occurs at different times in different countries.…”