Seasonal dengue and chikungunya epidemics are quite common in Male and the habited islands. So, if you are visiting such places, take adequate precautions and apply plenty of repellents and wear long-sleeved clothing. It won't be a factor in the resorts. The Maldives has a tropical climate, so soaring temperatures are common. Bring along adequate sunscreens and water if you venture outside of the resort. Furthermore, be wary of the water you drink, especially in Male. The best is to take a supply with you. If not, take some bottled water or ensure the water is adequately heated to boiling point. Considering that most resorts are remote, make sure you have good travel insurance with a considerable cover that includes airlifts etc, in case of emergencies.