New Inventions Help Fight Diseases in the Developing World

After the WHO endorsed the use of GeneXpert, Cepheid said it would offer a 75 percent price cut to countries with the highest number of TB cases. The public can also donate to the cause.

"For $20, you can buy one cartridge for the GeneXpert machine that would allow us to diagnose TB in an adult or a child really rapidly," Goldfeld told ABC News.

Embrace Infant Warmers: 'Sleeping Bags' for Babies Can be Reheated

Despite being one of the fastest-growing and largest economies in the world, India's infant mortality rate is incredibly high, especially for premature babies.

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According to Save the Children, more than 400,000 babies die in India within the first 24 hours of life every year.

ABC News' Elizabeth Vargas reported on a team which developed the Embrace Infant Warmers while they were students at Stanford's Institute of Design.

The product is an inexpensive, low-tech device that looks like a small sleeping bag. It regulates a baby's body temperature using a wax insert that can be safely reheated.

Incubators are vital to premature babies' survival because their internal organs are not fully developed at birth.

"These babies are so tiny they don't have enough fat to regulate their own body temperature," said Jane Chen, co-founder and CEO of Embrace. "In fact, room temperature feels like freezing cold water to them."

The "Be the Change: Save a Life" initiative is supported in part by the Bill & Melinda Gates Foundation.