The Effect and Safety of the Seasonal Trivalent Influenza Vaccine in Chronic Kidney Disease Patients Not on Dialysis

In recent years, several studies revealed that the current influenza vaccine strategy might be of minimal vaccine effectiveness and had a smaller effect on reducing morbidity and mortality in the end-stage renal disease population than previously thought. Thus, this also raised the question about the effectiveness of administration of influenza vaccination in chronic kidney disease patients not on dialysis. In this study, the investigators aim to evaluate the effectiveness of seasonal trivalent influenza vaccine, formulation 2013-2014, in patients with different stage of chronic kidney disease (CKD) not on dialysis.