WASHINGTON (Reuters) - New York’s mandate that fast-food restaurants post calorie information on their menus has changed consumer habits, the city said on Monday, contradicting a recent independent study showing no effect.

WASHINGTON (Reuters) - Israeli Jews who survived World War Two in Europe have a significantly higher risk for cancer than other Jews, possibly as a result of hardships endured in the Holocaust, researchers said on Monday.

WASHINGTON (Reuters) - The U.S. healthcare system is just as wasteful as President Barack Obama says it is, and proposed reforms could be paid for by fixing some of the most obvious inefficiencies, preventing mistakes and fighting fraud, according to a Thomson Reuters report released on Monday.

WASHINGTON (Reuters) - Senate Democratic leaders are close to securing enough votes to advance a sweeping healthcare reform backed by President Barack Obama, a top Senate Democrat said on Sunday, adding that it likely would include a national health plan that would allow states the option of dropping out.

SEOUL (Reuters) - A South Korean court Monday found disgraced stem cell scientist Hwang Woo-suk guilty of fraud and handed down a suspended sentence in a case that sent shockwaves throughout the global scientific community.

WASHINGTON (Reuters) - President Barack Obama has declared 2009 H1N1 swine flu a national emergency, the White House said on Saturday.

WASHINGTON (Reuters) - Democratic leaders moved on Friday to build support among the elderly for a massive overhaul of the U.S. healthcare system, saying the measure would immediately start closing a gap in Medicare prescription drug coverage.

WASHINGTON (Reuters) - Democrats in the U.S. House of Representatives struggled on Friday to agree on which version of a government-run health insurance plan to include in a reform bill, but said one was certain to be in the final legislation.

WASHINGTON (Reuters) - Low-income Americans with no more than a high school education appear more likely to get vaccinated against H1N1 swine flu than people with more money and better schooling, according to a poll released on Friday.

WASHINGTON (Reuters) - An industry-funded food labeling program was halted on Friday just days after U.S. officials warned they were investigating if nutrition claims on the front of packages were misleading.