New England Journal of Medicine
February 7, 2013  Vol. 368 No. 6
http://content.nejm.org/current.shtml

Review Article – Global Health
Designing Tomorrow’s Vaccines
Gary J. Nabel, M.D., Ph.D.
N Engl J Med 2013; 368:551-560
February 7, 2013 DOI: 10.1056/NEJMra1204186

Free full text:
http://www.nejm.org/doi/full/10.1056/NEJMra1204186