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Photo of Sipho Ngxongo SIPHO NGXONGO

Sipho Ngxongo is a regional director for the Department of Health in the South African province of KwaZulu-Natal. His job is fighting malaria, a disease that is transmitted by the Anopheles mosquito and kills over two million people annually, mostly in Africa.

Controlling malaria in KwaZulu-Natal requires an intensive program of mass screenings and several hundred health workers who bicycle around the countryside to visit local homesteads. These local health workers take blood smears to test for the disease and make follow-up visits to ensure that people who test positive for malaria are cured. Equally important, says Ngxongo, is building trust among the population so local people will cooperate with health workers to make progress against this disease.

See Sipho Ngxongo's answers to Ask the Scientists questions.


Scientific American Frontiers
Fall 1990 to Spring 2000
Sponsored by GTE Corporation,
now a part of Verizon Communications Inc.