Flu season: How do you prepare for it? - 'Outbreaks of the flu occur in different seasonal patterns depending on the region in the world. In temperate climate zones, flu season will typically begin in the late fall and peak in mid- to late winter. And in tropical zones, flu seasons appear to be less pronounced, with year-round isolation of the virus' More info here: http://www.flufacts.com/about/season.aspx