TY - JOUR T1 - Flu vaccine effectiveness low among seniors JF - The Nation's Health JO - Nations Health SP - 9 LP - 9 VL - 43 IS - 4 AU - Donya Currie Y1 - 2013/05/01 UR - http://www.thenationshealth.org/content/43/4/9.2.abstract N2 - This season’s flu vaccine reduced the risk of illness by a half to two-thirds for most people, according to a recent study, but there was low effectiveness among seniors for the most common virus strain. ER -