Association between Angiotensin Blockade and Incidence of Influenza in the United Kingdom

UK Study of healthcare records of 5.6 million persons found that those who had received a prescription for an ACE inhibitor had a lower risk of influenza than those who had not (adjusted HR, 0.66; 95%CI, 0.62-0.70). Longer use was associated with lower influenza risk.

New England Journal of Medicine