Health Affairs vaccinations for them were discovered first-hand the results of these diseases first vaccination over two centuries ago Health Affairs Edward Jenner Health Affairs first vaccination Edward Jenner Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs childhood mortality approached 40% by age five Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs first vaccine against smallpox Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs The History Of Vaccines And Immunization Health Affairs Health Affairs Health Affairs Health Affairs The History of Vaccines and Immunization http://content.healthaffairs.org/content/24/3/611.full Health Affairs Edward Jenner Health Affairs Health Affairs Health Affairs Health Affairs first vaccination History of Vaccines and Immunization Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs Health Affairs