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NEW YORK - Twice as many high school students used nicotine-tinged electronic cigarettes this year compared with last year, an unprecedented jump in a large annual survey of teen smoking, drinking and drug use.

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TORONTO - Lori Dreher said doctors had tried "everything" to control her daughter Andi's severe epilepsy — a laundry list of medications, a special diet and a couple of attempted surgical interventions. But none halted the seizures that have left the nine-year-old unable to walk unaided and …

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MIAMI - American diplomats affected by mysterious health incidents in Cuba showed damage in the inner ear shortly after they complained of weird noises and sensations, according to their earliest medical exams, publicized Wednesday.

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TRENTON, N.J. - In a story Dec. 6 about a new alternative to EpiPen, The Associated Press reported erroneously that emergency allergy injector Auvi-Q was among products that had shortages because of an EpiPen shortage. Auvi-Q did not have shortages.

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Skip the costly electronic games and flashy digital gizmos. Pediatricians say the best toys for tots are old-fashioned hands-on playthings that young children can enjoy with parents — things like blocks, puzzles — even throwaway cardboard boxes — that spark imagination and creativity.

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HONG KONG - Early last year, a little-known Chinese researcher turned up at an elite meeting in Berkeley, California, where scientists and ethicists were discussing a technology that had shaken the field to its core — an emerging tool for "editing" genes, the strings of DNA that form the blu…

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LONDON - The World Health Organization says the ongoing attempt to eradicate polio remains a global emergency amid an increase in cases for the first time in years and a worrying number of outbreaks sparked by the vaccine.

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WASHINGTON - Scientists working on the frontiers of medicine fear the uproar over the reported births of gene-edited babies in China could jeopardize promising research into how to alter heredity to fend off a variety of disorders.

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TORONTO - Randy Davis remembers attending a social function not long after he'd been diagnosed with HIV and watching as the hostess greeted a succession of guests, giving each a warm hug. But when his turn came, the woman's hand went up and she suggested he not get too close because she had a cold.

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The youngest children in kindergarten are more likely to be diagnosed with attention deficit hyperactivity disorder in early grades, a study shows, an intriguing finding for parents on the fence about when to start their child in school.

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SHENZHEN, China - The Chinese scientist who says he helped make the world's first gene-edited babies veered off a traditional career path, keeping much of his research secret in pursuit of a larger goal — making history.

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LONDON - Belgian officials are investigating whether doctors improperly euthanized a woman with autism, the first criminal investigation in a euthanasia case since the practice was legalized in 2002.

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Designer babies might be here sooner than anyone reckoned. A Chinese researcher who says he created gene-edited babies crossed what most scientists consider a forbidden line.

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DAKAR, Senegal - Congo has begun the first-ever trial to test the effectiveness and safety of four experimental Ebola drugs, the first time scientists have directly compared such treatments, the World Health Organization said Monday.

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HONG KONG - A Chinese researcher claims that he helped make the world's first genetically edited babies — twin girls born this month whose DNA he said he altered with a powerful new tool capable of rewriting the very blueprint of life.

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NEW YORK - In a major new effort to curb smoking, a top U.S. health official pledged Thursday to try to ban menthol from regular cigarettes, outlaw flavours in all cigars and tighten rules governing the sale of most flavoured versions of electronic cigarettes.