If you’ve had Twinrix, the Hepatitis A/B combo series of injections, or the separate Hepatitis A and/or B vaccines, this may be of interest to you.
You may want to consider asking your physician for his/her opinion on whether it would be appropriate to do a titre to test your antibody levels (it’s a blood test).
I mention this because a friend had the series of three Twinrix vaccines two years ago. She recently had a physical and her doctor did a hep titre as part of her bloodwork. She only had antibodies for one of the two types of hepatitis so she requires re-vaccination.
According to her physician and the pharmaceutical company, this is quite unusual, but it does happen.
This in no way is meant to say you need to have hepatitis immunization for travelling to the DR. As mentioned many previous times on the boards, medical advice should be provided by a physician or health travel clinic and not by fellow posters.
I thought it may be worth mentioning the possibility of inquiring about a titre, as I doubt that most people are familiar with them (other than posters who are health care professionals).