I wouldn`t bother with typhoid for the Caribbean. When there`s a typhoid outbreak somewhere, it`s usually fairly well publicised. The Dominican Republic isn`t quite as established as a tourist destination as some islands but I wouldn`t put the Caribbean in the same league as Africa or India. I eat and drink absolutely everything there (in abundance) and I have never been ill. Well I had a bit of a bad stomach on the way home the time before last but it was a badly handled chicken roti and that could happen anywhere.