from HuffPost5 months agoAfter being infected with the flu, it takes between 1 and 5 days for symptoms to occur, experts told HuffPost.HuffPosthttps://www.huffpost.com/entry/flu-symptoms-incubation-period_l_656f832ce4b0f3e5f44b2b2b Read at HuffPost #flu season #flu cases #symptoms #infection #flu shot[add][|| ... ]