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Mosquito Nets in Dormitory

Veiled in old bed nets, dormitory residents at the Kafue Boys Secondary School in Kafue, Zambia, get a small measure of protection each night. But the mosquito barriers are only as good as the fabric from which they're made. Holes in the nets, untreated material, or an exposed hand or foot during sleep increase the odds that the malaria-carrying insects will bite.

Photograph by John Stanmeyer