Which of the following statements are true about malaria in Africa? i. 100 million people in Africa are infected with malaria yearly. ii. Most of the people who die of the disease are adults over age 60. iii. African nations spend billions of dollars each year fighting the disease.

Statement i is true: about 100 million people in Africa are infected with malaria each year. Statement ii is false because malaria deaths are concentrated among young children, especially those under age five, rather than adults over 60. Statement iii is true because malaria prevention and treatment cost African nations billions of dollars each year. Therefore, the true statements are i and iii only.

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