There is a risk of waterborne diseases such as Leptospirosis, diarrhoea, dysentery and typhoid. Drink only bottled water, take care not to swim with open cuts or to walk barefoot near open waterways used by farm animals. No vaccination certificates are required for entry to Fiji, but a yellow fever vaccination certificate is required from travellers entering Fiji within 10 days of having stayed overnight or longer in infected areas. The mosquito-borne disease, dengue fever, is a serious risk between November and April. Preventive measures include wearing long clothes and using insect repellent at all times. Medical facilities are adequate for uncomplicated treatment, but travel insurance with provision for medical evacuation to Australia or New Zealand is advised. All food is considered safe.