What are your thoughts on all of the vaccines that are around these days? Are some of them needed? Or should we not get any of them? Do you guys keep up to date on Tetanus shots? Should I?

I mainly ask because my mother has asked me to get a Tdap (Tetanus, diptheria and pertussis). She is concerned about the whooping cough since she has a 6 month old, and doesn't want me possibly bringing it around him. My initial response is...no, of course I don't want the shot. If you have more information on this, let me know! It's hard to find reliable sources on it.