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PICOTFor older patients aged 65 years and older (P), use of an influenza vaccine (I) comparedto not receiving the vaccine (C) reduces the risk of developing pneumonia (O) during the fluseason (T).ArticlesA study carried out from January 2010 through June 2012 estimating community-acquired influenza pneumonia hospitalization which was laboratory confirmed and itsassociation with prior vaccination indicated a positive correlation. In general, the odds ofacquiring influenza pneumonia are lower in individuals who have undergone previousimmunization. The study revealed that hospitalizations due to influenza pneumonia werefrequent in patients who had not received the vaccine. The authors' appraisal is influenzavaccination is vital to preventing hospitalizations arising from acute respiratory illness due toinfluenza. Estimated effectiveness of influenza vaccine in adults who are 65 years or older isabout 42-61%[Gri15]. Following the Food and Drug Administration (FDA) licensing of the high-