Vaccines may not be the moneymakers that drug firms like, but they have transformed U.S. health. A study looking at the prevaccine and postvaccine eras finds that of 13 childhood vaccinations, nine showed at least a 90 percent decline in death and in hospitalization rates. Today's nonimmunized child typically comes from a wellto-do family granted religious or philosophical exemptions, rather than from a poor family lacking insurance, as was the case in the past.
Vaccines approved before 1980 prevent diphtheria, measles, mumps, pertussis, poliomyelitis, rubella, smallpox and tetanus; vaccines approved since then target hepatitis A, acute hepatitis B, Hemophilus influenzae b (Hib), Streptococcus pneumoniae and varicella (chicken pox).
Annual average number of disease cases in prevaccine era for vaccinations recommended before 1980 (covering eight diseases): 1,027,958
On supporting science journalism
If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.
Annual average number of cases in postvaccine era: 22,324
Annual average number of cases in prevaccine era for vaccinations first recommended after 1980 (covering five diseases): 4,351,752
Annual average number of cases in postvaccine era: 682,835
Estimated annual deaths from all 13 diseases in: Prevaccine era: 18,412
Postvaccine era: 4,970
Postvaccine era, excluding strep: 120
SOURCE: Journal of the American Medical Association, November 14, 2007