The idea of changing our vaccination schedule is not as radical as it sounds, the authors note. вЂњIf we were to use a simple age-based system, people would only have to remember to get their shots when they turn 30 and again when they turn 60.вЂќ вЂњIf you ask around, you often find that it is hard for people to remember if they had their last tetanus shot eight years ago or even 11 years ago,вЂќ says Slifka.

If a revised adult vaccination schedule were implemented, the authors believe that a simplified age-based vaccination plan could be designed to involve a single vaccination at age 30 and again at age 60. Their analysis shows adults will remain protected against tetanus and diphtheria for at least 30 years without the need for further booster shots, after completing the standard five-dose childhood vaccination series. In this study, Slifka and colleagues looked at the magnitude and duration of immunity to tetanus and diphtheria to provide an evidence-based evaluation of the current adult vaccine schedule. вЂњWhen we looked at the levels of immunity among 546 adults, we realized that antibody titers against tetanus and diphtheria lasted much longer then previously believed.вЂќ Slifka, Ph.D., a professor at the Oregon National Primate Research Center at OHSU.

вЂњWe have always been told to get a tetanus shot every 10 years, but actually, there is very little data to prove or disprove that timeline,вЂќ says Mark K. Their paper in Clinical Infectious Diseases recommends that the current adult vaccination schedule should be revisited. Researchers at Oregon Health & Science University are challenging the convention that tetanus and diphtheria vaccine boosters need to be administered every 10 years.

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