Small in Kingston, considerably larger in Negril and MoBay. Most men dress in shirt and tie. Some keep the coat in spite of the terribly warm weather. The proximity of First World care in Miami is a huge plus. For emergencies, competent US and Canadian educated doctors serve at several good hospitals and clinics all over the island.
Several vets work for very reasonable prices.
Jamaica also has several private breeders who still work stock first imported from Britain. The growth in crime over the recent years has prompted a huge demand for more vicious dogs like pit bulls, but smaller breeds are also available. The expense and seclusion can be difficult. They are expensive here. Bring plenty of clothes too.