What are the effects of annual influenza vaccination on winter mortality in elderly people with chronic heart disease?
According to the study done by de Diego C, Vila-Corcoles A, Ochoa O, et al. (2008), annual influenza vaccination has been associated with a decreased risk of winter mortality among elderly people with chronic heart disease. The results of the study showed that there was a significant decrease in mortality when the elderly with chronic heart disease were vaccinated with the annual influenza vaccine.