%0 Journal Article %T Impact of Repeated Influenza Immunization on Respiratory Illness in Children With Preexisting Medical Conditions %A Anne G.M. Schilder %A Elisabeth A.M. Sanders %A Henriette A. Smit %A Marieke L.A. de Hoog %A Patricia C.J.L. Bruijning-Verhagen %A Roderick P. Venekamp %A Roger A.M.J. Damoiseaux %J Archive of "Annals of Family Medicine". %D 2019 %R 10.1370/afm.2340 %X Annual influenza immunization in medical risk groups is recommended in many countries. Recent evidence suggests that repeated inactivated influenza vaccine (IIV) immunization throughout childhood may impair long-term immunity against influenza. We assessed whether prior immunization altered the effect of IIV in children with preexisting medical conditions on primary care¨Cdiagnosed respiratory illness (RI) episodes during the influenza season %K influenza %K immunization %K preexisting medical condition %K children %K pediatrics %K respiratory illness %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6342594/