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While You Were Gone

Doctors developed a treatment for tuberculosis in the 1940s, but it continues to spread, especially in the developing world.

Because of their weakened immune system, HIV patients are often susceptible to TB, which has allowed the disease to spread.

In recent years, improper use of tuberculosis drugs has led to the development of MDR-TB, which is resistant to cocktails of even four or five standard drugs.

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The Gate's Foundation grant represents the first effort by any organization to fight resistant strains of the disease.

Officials from the Gates Foundation hope the project in Peru will be used as a model for work in other countries.

"We've done a lot of work in TB. I think this is just another component in what we're trying to do in that area," said Annemarie Hou, a spokesperson for the Foundation.

--Tova A. Serkin

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