Richard Knox appears in the following:
Friday, September 05, 2014
The diplomat violated a quarantine. The doctor became ill but still saw patients. Now Africa's most populous country is scrambling to find more than 200 people who could have Ebola.
Thursday, September 04, 2014
What are the chances somebody with Ebola will fly to the U.S. by late September? One team of scientists says it could be as high as 18 percent. And the risk is even higher for the U.K.
Tuesday, July 08, 2014
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.
Monday, July 07, 2014
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.
Wednesday, May 28, 2014
The study is the first to test an oral vaccine in the middle of an outbreak — in Guinea in 2012. And it offered a remarkable degree of protection against this deadly disease.
Thursday, May 22, 2014
Health officials say online restaurant reviews can turn up unreported foodborne illness outbreaks. In New York City, Yelp reviews led officials to three restaurants with food handling problems.
Friday, May 16, 2014
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 very expensive, but they cure hepatitis C in most cases. The government and insurers are concerned about these costs; three million Americans have hepatitis C, most of whom don't know they have it.
Friday, May 16, 2014
This policy change would pay for treatment with a combination of new, expensive drugs for patients who haven't responded to older treatment regimens and are approaching or have cirrhosis of the liver.
Thursday, May 15, 2014
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.
Monday, May 12, 2014
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.
Wednesday, April 09, 2014
About 150 million people worldwide have hepatitis C, and all should be assessed and treated, the World Health Organization says. The cost of screening and drugs means that won't happen soon.
Thursday, March 20, 2014
New advice to reduce heart attacks and strokes could more than double the number of Americans taking cholesterol-lowering statins to 56 million. The expansion could cost as much as $7 billion a year.
Monday, March 03, 2014
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.
Tuesday, February 25, 2014
A new virus in the Middle East has sickened more than 180 people and killed an alarming 43 percent of them. But scientists haven't been sure where the virus originates or how people catch it.
Sunday, February 16, 2014
Scientists have apparently been wrong about where new flu viruses come from, and they've underestimated the viruses' connection to horses. The dogma is that new viruses always incubate in wild migratory birds first, then get into domestic poultry, and then jump into mammals — especially pigs and humans.
Wednesday, February 12, 2014
Barbara Mancini was charged with assisting her father's suicide by providing him with a lethal dose of morphine. A judge's decision in her favor is the latest in a series of developments signaling a reluctance of courts and state legislatures to criminalize medical care that may hasten death.
Friday, February 07, 2014
The U.S. recently approved a drug that can quickly cure hepatitis C in many patients. But its high price means the treatment is out of reach for millions of people in the developing world. Now the pill's manufacturer is talking with Indian producers to reduce the treatment cost to $2,000. But critics say the price drop won't be enough.
Thursday, January 30, 2014
Men who take testosterone supplements double their risk of heart attacks, a study finds. That was true for men over 65 and for younger men with heart disease. Testosterone supplements have become increasingly popular as a way to counter flagging libido.
Monday, January 27, 2014
Serving chicken, pigeon or duck for the holiday may be harder this year for some families in China and Hong Kong. As the deadly H7N9 virus continues to spread, officials in China have closed many live poultry markets, while agricultural workers in Hong Kong plan to cull thousands of chickens this week.
Friday, January 10, 2014
Words matter when it comes to medicine. By comparing placebo pills labeled as migraine medicine with medicine labeled placebos, doctors figured out that half of the pain relief of medication comes from a person's belief in its effectiveness.