Tim Fitzsimons
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Public health interventions and antiviral drugs have put HIV on the ropes in the U.S. But it's unlikely that infections can be wiped out without a vaccine.
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The risk of flash floods has subsided across South Carolina's Lowcountry. But overflowing rivers continue to pose a risk as residents begin to assess the damage to their roads, homes and businesses.
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The World Health Organization has just recommended that all HIV positive people take antiretroviral medications. If that guideline is enforced, it could help stop the spread of HIV worldwide.
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Facebook's newest tool, known as Safety Check, aims to allow people to quickly alert friends and family that they are safe after a natural disaster.
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More than half the global population has never been online. But Silicon Valley giants are trying to change that.
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Some owners of Apple's new iPhone 6 and 6 Plus are discovering that their superslim glass and aluminum devices aren't holding up well in an environment that's usually safe: their pockets.
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Apple wants to change the way you pay for things. Credit card companies are embracing its new mobile payment system as a boost to security, but analysts say Apple could disrupt the payments industry.
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The island is paying nearly 10 percent interest on its bonds to attract reluctant investors. And some credit-rating analysts are saying Puerto Rico's bonds may soon get a downgrade. But optimists say they can help solve the island's problems from the bottom up.