A yellow fever vaccination certificate is required by travellers
over one year of age arriving within six days of having stayed
overnight or longer in an infected country. No other special
immunizations or medications are required for most trips to
Australia, however insect repellents are strongly advised because
of the risk of Murray Valley encephalitis, Ross River virus
infections, dengue fever and other mosquito-borne illnesses.
Another health risk is sunburn, and visitors are advised to take
precautions. Medical services are excellent, but can be expensive
so travellers should ensure that they have adequate insurance.
Australia has a reciprocal health agreement with the United Kingdom
providing for free hospital emergency medical treatment; proof of
UK residence is required.