Mule Name Meaning. English: from a medieval personal name, perhaps Old English Mul (from Old English mul âmuleâ, âhalfbreedâ). This was the name of a brother of Ceadwalla, King of Wessex (died 675), and is also found as a place name element.
1 The whooping cough booster is a combination vaccine with tetanus and diphtheria. 2  The vaccine is called Tdap. 3  Once an adult gets the Tdap vaccine, he or she should get the Td (tetanus and diphtheria) booster every 10 years from then on.
1 For adults, a tetanus booster every 10 years ensures protection against tetanus; the new Tdap booster provides protection not only against tetanus, but also against diphtheria and pertussis.  Because of the rise in US pertussis cases, some people should not wait 10 years to get their Tdap booster.