Richard Knox

Heavy drinking can lead to alcohol-induced amnesia. It can be total or it can be spotty. Either way, it can be difficult for a bystander, or even the inebriated person, to know when it has happened.

The idea is to inject anti-HIV antibodies that would kill the virus when people get exposed. A new study is promising — although it was conducted on monkeys.

The demands: a U.N. apology for bringing the disease to the island, reparations for victims, repairs to the water system. Meanwhile, a study shows the toll is far worse than previously thought.

Several times a week Mike Quaglia dons bright red boxing gloves and pummels a hundred-pound punching bag. What's unusual is he has Parkinson's disease and the boxing helps alleviate his symptoms.

Haiti's magnitude 7.0 earthquake of Jan. 12, 2010, left 220,000 people dead, 300,000 injured and rubble nearly everywhere.

The catastrophe also unleashed an unprecedented flood of humanitarian aid — $13.5 billion in donations and pledges, about three-quarters from donor nations and a quarter from private charity.

But today Haiti ...

The world is facing a double-barreled pandemic reminiscent of the dual epidemic of tuberculosis and HIV that emerged in the 1980s – only potentially much bigger.

It's a "co-epidemic" of TB and diabetes that's beginning to affect many countries around the globe — poor, middle-income and even rich nations.

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Ever since Ebola first appeared in Nigeria in July, health officials have been holding their breath. Could the country keep the virus from spreading outside its capital of Lagos?

The answer is no. The lethal virus has jumped to another major city. The outcome of a public health drama unfolding ...

It's only a matter of time, some researchers are warning, before isolated cases of Ebola start turning up in developed nations, as well as hitherto-unaffected African countries.

The current Ebola outbreak in West Africa has killed more people than all previous outbreaks combined, the World Health Organization said Wednesday. The ...

People under stress are more likely to have health problems, according to a poll by NPR, the Robert Wood Johnson Foundation and the Harvard School of Public Health. That's true for caregivers, too.

Half of Americans say they've had a major stressful event in the past year, according to a poll by NPR, the Harvard School of Public Health and the Robert Wood Johnson Foundation. Here's how it hurts.

There's new evidence that an oral cholera vaccine might help stop an epidemic in its tracks.

That's the encouraging message from a study that tested a two-dose vaccine during a 2012 outbreak in Guinea. The virus was 86 percent effective in preventing immediate infection of a scourge that afflicts ...

Almost 50 million Americans get food poisoning every year, the Centers for Disease Control and Prevention estimates. But only a tiny fraction of those cases get reported, making it tough to figure out where they came from.

But health officials recently discovered a trove of data that may help them ...

The federal Medicare program for the elderly and disabled will cover two new drugs that can cure hepatitis C, a liver disease that can cause cancer and lead to death. The drugs are ve...

Federal Medicare officials are embracing medical guidelines for the treatment of hepatitis C that could result in tens of thousands of older Americans getting access to expensive new drugs that can cure the deadly infection.

This policy change would pay for treatment with a combination of new, expensive drugs for ...

Two new drugs for hepatitis C can save lives. They are also wildly expensive, costing $66,000 to $84,000 per person. Insurers face paying billions for treatment, or explicitly rationing vital care.

As many as 5 million Americans have hepatitis C, and new drugs can cure almost all of them. But patients worry they won't get these expensive treatments in time.

Authors of the first-ever global guidelines for treating hepatitis C went big Tuesday, advocating for worldwide use of two of the most expensive specialty drugs in the world.

The new guidelines from the World Health Organization give strong endorsement to the two newest drugs. Gilead Sciences' Sovaldi costs $1,000 ...

When sweeping new advice on preventing heart attacks and strokes came out last November, it wasn't clear how many more Americans should be taking daily statin pills to lower their risk.

A new analysis provides an answer: a whole lot. Nearly 13 million more, to be precise.

If the ...

States are legalizing marijuana even though there's no clear understanding of its impact on health. The drug hasn't been subjected to the kind of rigorous medical research that would find that out.

Scientists have gotten close to pinning down the origin of Middle East Respiratory Syndrome, a dangerous respiratory disease that emerged in Saudi Arabia 17 months ago.

It turns out the MERS virus has been circulating in Arabian camels for more than two decades, scientists report in a study published Tuesday.

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