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 Tdap should be given as a one-time booster in place of Td. Tdap is especially important for those in close contact with infants.  Adolescents 11 through 18 years old (preferably at age 11-12 years old) and adults 19 years or older should receive a single dose of Tdap.