Visiting Wales doesn't pose any particular health concerns for the international traveller.
Tap water in Wales is safe to drink.
The National Health Service (NHS) provides free treatment for residents across the UK, including Wales, and foreign nationals are entitled to register with a local doctor if staying in the UK for an extended period.
EU nationals are required to present their European Health Insurance Card (EHIC) in order to receive free NHS treatment. If overseas visitors are not able to do this, they will be liable for NHS charges. Any prescriptions issued will still be chargeable unless the patient is covered by one of the NHS exemptions. For more details of the scheme and how to apply for an EHIC card, visit www.nhs.uk/NHSEngland/Healthcareabroad/EHIC.
Citizens from non-EU countries should find out if there is a reciprocal arrangement for free emergency medical care between their country and the UK.
However you're travelling, make sure you take out a comprehensive travel insurance policy that covers you for medical expenses. When choosing a policy, check whether the insurance company will make payments directly to providers or reimburse you later for overseas health expenditures.
EU nationals are required to present their European Health Insurance Card (EHIC) in order to receive free NHS treatment; see www.nhs.uk/NHSEngland/Healthcareabroad/EHIC for more details.
Paying for your flight tickets with a credit card often provides limited travel-accident insurance (ie it covers accidental death, loss of limbs or permanent total disablement). You may be able to reclaim the payment if the operator doesn't deliver the service, but this should not be relied upon instead of a full travel insurance policy.
No specific vaccinations are required for visiting Wales.