* A yellow fever vaccination certificate is required from travellers over one year of age coming from infected areas.

Mains water is normally chlorinated, and whilst relatively safe, may cause mild abdominal upsets. Bottled water is available and is advised for the first few weeks of the stay. Drinking water outside main towns may be contaminated and sterilisation is advisable. Milk is pasteurised and dairy products are safe for consumption. Local meat, poultry, seafood, fruit and vegetables are generally considered safe to eat.

Outbreaks of dengue fever occur in the area, as well as dengue haemorrhagic fever. Vaccination against hepatitis B and tuberculosis is sometimes advised.

As visitors are required to pay up front for treatment. International travellers are strongly advised to take out full medical insurance. There are four main hospitals across the island. There are also some private clinics, but with high charges.