Richard Knox appears in the following:
Sunday, September 01, 2013
Preventive treatment of partially blocked arteries in patients suffering a particular kind of severe heart attack reduces future heart attacks, cardiac deaths and cases of recurrent chest pain by about two-thirds.
Wednesday, August 28, 2013
Disability and illness caused by opioids, amphetamines, cocaine and cannabis increased by more than 50 percent over the two decades prior to 2010. Opioid dependence in particular has become much more common.
Tuesday, August 27, 2013
Since the rollout the rotavirus vaccine for infants in 2006, the spillover benefits to children and adults who weren't immunized have been enormous. Hospitalizations due to the stomach virus have dramatically declined in those populations, too.
Tuesday, August 27, 2013
Many stroke patients are getting treatment with a drug that dissolves blood clots. The approach was once controversial. But giving the drug to eligible patients within a few hours of a stroke's first symptoms can prevent disability.
Friday, August 23, 2013
The study randomly assigns preemies to one group that will get blood transfusions when their anemia is relatively mild or another that won't get them until the anemia is severe. Researchers want to see which approach is better at reducing deaths and brain damage. Critics say the doctors haven't leveled with parents about the risks.
Wednesday, August 21, 2013
An experimental drug rescued three out of seven monkeys from lethal doses of Ebola. The study marks the first time researchers have shown that a drug can successfully treat Ebola in animals even after the infection is well underway.
Monday, August 19, 2013
Fewer than 30,000 cases of the tick-borne illness are reported each year. But the CDC says surveys of labs that test for the disease, six years of insurance claims and other surveillance methods suggest that the number of infections is actually 10 times higher.
Wednesday, August 14, 2013
Doctors have debated for years whether a drug that curbed the growth of some prostate cancers caused more serious ones to grow faster. Now, a long-term study calms those fears and raises the possibility that a cheap, generic pill could be used reduce prostate cancer risk.
Monday, August 05, 2013
The question of how to treat ductal carcinoma in situ is roiling the medical profession, and making for tough choices for women. The condition may never become invasive cancer. But some women choose to have mastectomies rather than live with uncertainty.
Wednesday, July 31, 2013
A Philadelphia woman who allegedly gave her 93-year-old father a vial of morphine is facing prosecution in Pennsylvania. Most state laws prohibit assisted suicide, but prosecutions are becoming increasingly rare.
Monday, July 29, 2013
Most people get diagnosed with lung cancer when it's too late to effectively treat it. A federal panel is trying to improve the odds by saying that longtime smokers and former smokers should get annual CT scans to check for lung cancer.
Friday, July 19, 2013
One study finds that women who have been vaccinated against HPV are much less likely to have throat infections with the virus. Since the vaccine helps reduce risk of some cancers, scientists think it might turn out to be effective against throat cancers, too.
Thursday, July 18, 2013
Healthy life expectancy is lowest for people in the South, a study finds. People living in the West, Northeast and Great Plains tend to be doing better. But staying healthy is about more than just geography. Healthy habits and access to good health care count, too.
Thursday, July 18, 2013
Officials in Sheboygan, Wis., scrambled to contain a deadly, drug-resistant form of tuberculosis. An outbreak there serves as a reminder that the contagious disease still poses a threat in the U.S. Treating just nine cases will take months and cost millions of dollars.
Thursday, June 20, 2013
Middle East Respiratory Syndrome emerged a year ago in Saudi Arabia, although the world didn't find out about it until September, when researchers said it was caused by a previously unknown virus that's in the same family as SARS.
Wednesday, June 19, 2013
A vaccine against a virus that causes cervical cancer has cut infections among teenage girls by over half in the first four years of use, scientists report. Only about one-third of girls in that age group have received the recommended shots.
Thursday, June 13, 2013
Needle sharing and drug use put an estimated 4,000 people at risk for contracting HIV every year. Now, the same medications that are used to treat HIV-positive individuals might also protect the uninfected before they engage in risky behavior.
Monday, June 10, 2013
Is the world on the verge of a pandemic? There are three reasons to think so. Two flu viruses are active, and a virus that bears a resemblance to SARS has cropped up in the Middle East. Each has devastating potential, but many early warnings of past pandemics have failed to materialize.
Thursday, June 06, 2013
At issue is a controversial study of more than 1,300 severely premature infants that looked at how much oxygen they should receive after birth. This spring, the federal Office for Human Research Protections criticized the scientists who ran the study for failing to tell parents enough about the risks.
Tuesday, June 04, 2013
The goal is to counter drug resistance, which is largely a consequence of antibiotics overuse. Supporters say the plan would entice companies back into the market because it would be much cheaper to gain approval. But critics call it "a tragedy of monumental proportions."