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Volume 13, Number 4—April 2007

Influenza Vaccine Effectiveness among US Military Basic Trainees, 2005–06 Season

Jennifer K. Strickler*Comments to Author , Anthony W. Hawksworth*, Christopher Myers*, Marina Irvine*, Margaret A.K. Ryan*, and Kevin L. Russell*
Author affiliations: *Naval Health Research Center, San Diego, California, USA;

Main Article


Vaccine effectiveness against laboratory-confirmed influenza among US military basic trainees, 2005–06*†

Site Vaccinated person-weeks Unvaccinated person-weeks Cases in vaccinated trainees Cases in unvaccinated trainees Vaccine effectiveness (%) 95% CI
Fort Jackson, SC 77,874 25,958 7 13 82.1
Fort Wood, MO 67,513 22,504 2 11 93.9
Fort Benning, GA 68,652 22,884 3 0
Lackland AFB, TX 37,435 18,690 1 10 95.0
NSTC Great Lakes, IL 67,763 22,588 0 13 100.0
MCRD San Diego, CA 35,490 11,830 0 10 100.0
Total 354,727 124,454 13 57 92.0 (85.4%, 95.6%)

*CI, confidence interval; SC, South Carolina; MO, Missouri; GA, Georgia; AFB, Air Force base; TX, Texas; NSTC, Naval Service Training Command; IL, Illinois; MCRD, Marine Corps Recruit Depot; CA, California.
†Assuming 14 d before vaccine is protective.

Main Article

Page created: June 28, 2010
Page updated: June 28, 2010
Page reviewed: June 28, 2010
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.