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.
DTaP is given to children younger than 7 years of age and Tdap is given to children, adolescents, and adults 7 years of age and older. Students who have already received a dose of Td (tetanus and diphtheria vaccine) at age 7 years or older must still receive a dose of Tdap.