The best replacement for tetanus is tdap.

The best alternatives to tetanus are rated as following:
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★★★★  botulism
★★★★  lockjaw
★★★  tonus
★★  tetany
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★  rigor mortis
★  rabies
★  dtap
★  summation
★  strychnine
  lock jaw
  tetanus

Your alternative for tetanus is not listed? Suggest!
Speaking about tetanus, one probably shouldn't forget about pertussis.

Other search terms related to tetanus and their ratings are:
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★★★ pertussis vaccine
★★★ whooping cough vaccine
★★ whooping cough
★ lockjaw
★ dog bite
★ pertussis shot
★ pertussis booster
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You have in mind a companion for tetanus and it is not yet here? Propose!



Google Trends

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tetanus
tdap
botulism