Few studies have evaluated the relationship between influenza vaccination and pneumonia, a serious complication of influenza infection.
To assess the association between influenza vaccination status and hospitalization for community-acquired laboratory-confirmed influenza pneumonia.
Design, Setting, and Participants
The Etiology of Pneumonia in the Community ...
JAMA. Published online October 05, 2015. doi:10.1001/jama.2015.12160