No vaccinations are required for entry to Estonia, but it is highly recommended that adults be immunised for tetanus and diphtheria if they have not been vaccinated for these diseases during the preceding 10 years. Medical insurance is vital. Estonia's medical professionals are highly trained but resources and equipment are sadly lacking. Immediate cash payment is expected from visitors requiring health care. There is a reciprocal health agreement with the UK and most EU countries, whose citizens are entitled to free medical and dental treatment on presentation of a European Health Insurance Card (EHIC). Medical insurance is advised for other nationalities.