What was regarded as the lifeblood of the country of the Maldives?

A homemade bomb has exploded in a busy park in the capital of the Maldives, Male, injuring 12 tourists. A government spokesman Mohamed Shareef said it was taking the attack very seriously as tourism was the lifeblood of the Maldives.
Question: What was regarded as the lifeblood of the Maldives?

WHO Director-General Margaret Chan says many sick people in developing countries die because they cannot afford medicine that can cure them. In some cases, she says, resistance to diseases develops because they fail to be treated promptly and properly. She blames much of this on the inability of the poor to get hold of the medicine and health care they need.
Question: What is responsible for the death of many people in developing countries?