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Killer T-cell Therapy Shows Promise against Leukemia

A cancer-killing therapy that engineers a patient's own immune cells to wipe out chronic lymphocytic leukemia (CLL) has shown long-term success in a handful of people, a US study said Wednesday.

Experts said the approach is on the cutting edge of a growing field known as immunotherapy, which coaxes the body to kill off cancer and may someday revolutionize oncology by ending the use of toxic chemotherapy.

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FDA Issues Warning Letters to Powdered Caffeine Distributors

The Food and Drug Administration has issued warning letters to five distributors of pure powdered caffeine, saying the products put consumers at risk.

The letters, which are dated Aug. 27, follow the overdose deaths last year of two young men from Ohio and Georgia.

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WHO: Liberia Declared Free of Ebola, Again

The World Health Organization on Thursday announced that Liberia, recently ravaged by Ebola, was free of the virus, 42 days after the last confirmed case passed a second negative test.

"WHO declares Liberia free of Ebola virus transmission in the human population," the U.N. health agency said in a statement.

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50 People Quarantined after New Ebola Death in S. Leone

Fifty people have been placed in quarantine in northern Sierra Leone after the death of a middle-aged woman from the Ebola virus, medical officials said Tuesday,  in a setback for the country's bid to gain Ebola-free status.

"We are conducting an epidemiological investigation to trace the extent of the transmission" as the woman ho died was sick for 5-10 days without the authorities being alerted, Ibrahim Sesay of the  National Ebola Response Centre (NERC) told a local radio station.

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Most Americans' Hearts are Older than Their Actual Years

Three out of four Americans' hearts are older than their chronological age, raising the risk of heart disease, stroke and premature death, officials said Tuesday.

An online tool at www.cdc.gov/heartdisease/heartage.htm can help people determine how old their heart is, based on factors like weight, smoking, diabetes and high blood pressure, said the U.S. Centers for Disease Control and Prevention.

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Obese at 50? Midlife Weight May Affect when Alzheimer's Hits

One more reason to watch the waistline: New research says people's weight in middle age may influence not just whether they go on to develop Alzheimer's disease, but when.

Obesity in midlife has long been suspected of increasing the risk of Alzheimer's. Researchers at the National Institutes of Health took a closer look and reported Tuesday that being overweight or obese at age 50 may affect the age, years later, when Alzheimer's strikes. Among those who eventually got sick, more midlife pounds meant an earlier onset of disease.

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A Bold Move to Save a Man's Hand: Tucking it into His Tummy

Casey Reyes struggled for a way to explain the "sci-fi" surgery doctors were proposing to save her 87-year-old grandfather's badly burned hand.

"They're gonna put your hand inside your stomach, kind of like a hoodie," she told him.

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UK Rolls out World's First Meningitis B Vaccination Program

Britain on Tuesday became the first country to implement a vaccination program for all newborn babies against meningitis B, which is fatal in one in 10 cases.

Campaigners hope the vaccine, which will be given to babies at two, four and 12 months old, will prevent up to 4,000 cases by 2025.

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Pope Tells Priests to Pardon Women who Have Abortions

Pope Francis on Tuesday called on priests to pardon women who have abortions, and the doctors who perform them, during the upcoming Jubilee year -- overruling hardline traditionalists within the Catholic Church.

"I have decided, notwithstanding anything to the contrary, to concede to all priests for the Jubilee Year the discretion to absolve of the sin of abortion those who have procured it and who, with contrite heart, seek forgiveness for it," he said.

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Nigerian Leader Canvasses Efforts for Polio-Free Status

President Muhammadu Buhari wants Nigeria to continue efforts to win certification as a polio-free country by 2017 after recording its last case in July last year, his office said Tuesday.

"I want to reaffirm the commitment of the federal government to sustain the gains and momentum to enable Nigeria to achieve certification by 2017," Buhari told a meeting of state governors in Abuja late Monday.

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