Several papers tracking H3N2 across continents have asserted that this tropical reservoir of influenza strains lies within East-Southeast Asia [12, 14, 17] . Russell, et al. analyzed H3N2 data to identify regions of the world that are antigenically and genetically leading or trailing. They found that newly emerging strains appeared in E-SE Asia roughly 6-9 months earlier than in other parts of the world, while South America experienced delayed transmission of roughly 6-9 months following other parts of the world [8] .