Pneumonia leading cause of death and infection
Community-acquired pneumonia was the #6 cause of death and the #1 cause of death from infection in the U.S. in 2003.
Mortensen, Eric M., Wishwa M. Kapoor, Chung-Chou H. Chang, and Michael J. Fine. Assessment of Mortality After Long-Term Follow-Up of Patients with Community-Acquired Pneumonia. Clin Infect Dis. 2003; 37(12): 1617-24. http://cid.oxfordjournals.org/content/37/12/1617.full