Mark Slifka, Ph.D., works in his lab at OHSU. A new review led by Slifka, suggests dropping precautionary booster vaccinations in the U.S. for tetanus and diphtheria among adults who have already gone through their childhood vaccination series. This would be similar to guidelines by the World Health Organization, the United Kingdom and in how the U.S. currently recommends vaccination for other infectious diseases. (OHSU/Christine Torres Hicks)

A new review led by Mark Slifka, Ph.D., suggests dropping precautionary booster vaccinations in the U.S. for tetanus and diphtheria among adults who have already gone through their childhood vaccination series, similar to guidelines by the World Health Organization, the United Kingdom and for how the U.S. handles vaccination for other infectious diseases. (OHSU/Christine Torres Hicks)