At the time of writing there are no mandatory vaccinations required for Caribbean holidays. However, several vaccinations/boosters are recommended and you should consult your doctor at least 12 weeks prior to your departure for relevant advice.
If you are pregnant or planning to become pregnant, you are advised to talk to a health professional regarding Zika virus.
For further information, there is a leaflet, 'Health Advice to Travellers' available from the Department of Health, and this can be obtained by telephoning 0800 555777.