Researchers around the world are working on ways to combat the outbreak of "coffee rust," a fungal infection affecting coffee plants across Central America and Africa. The infection, which causes the plant's leaves to fall off, is "the worst we've seen in Central America and Mexico since the rust arrived," said one ecologist. Scientists in Colombia say they are close to developing rust-resistant strains of coffee, and Brazilian researchers are isolating the gene of the fungus in hopes of finding tailored treatment methods.

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