WASHINGTON, DC—When Natalie Skipper got sick after spending time in South Africa, no one could figure out what was wrong.

Over the next year, she was diagnosed with—and treated for—several illnesses, including Chron’s disease, ulcerative colitis, and pneumonia. At one point her doctor even told her they would need to remove her colon in order for her to recover. But all of these diagnoses were wrong.

Panels with titles like “HIV/TB collaborative activities,” and “cost-effective approaches to HIV and TB treatment” have speckled the schedule this week at AIDS 2012. That’s because worldwide, one in four AIDS deaths is caused by tuberculosis (TB). Spread through droplets released when an infected person coughs or sneezes, TB can be deadly. In fact, it’s the leading killer of people living with AIDS.

But TB isn’t always tied to HIV/AIDS. Only 12 percent of TB patients have HIV, which means that 88 percent do not, and Skipper, 34, is one of them.

WASHINGTON, DC — Dr. Jim Yong Kim is just three weeks into his job as president of the World Bank, and one of his first steps has been to go around the Bank and introduce himself. He was most recently the president of Dartmouth College, but he has a long history of fighting for what he and his close friend, Paul Farmer, have called the “preferential option for the poor.” He is a poverty fighter.

GlobalPost live-tweeted the opening plenary session of AIDS 2012, which ended with a speech by Secretary of State Hillary Clinton. This storify summarizes our tweets of the session.