Answer:
Tdap vaccine.
Explanation:
Td vaccination may be defined as the booster vaccine that cantains the vaccination against the diphtheria and tetanus. This vaccination is given to the children under the age of 7.
The man with 69 year old received Td vaccination 4 years ago. He is travelling to see newborn granddaughter next month. The Tdap vaccine containing the diphtheria, pertussis and tetanus would be most appropriate for him.
Thus, the answer is Tdap vaccine.
