Science

Swine Flu Virus Resistant to Roche's Tamiflu Found in Hong Kong Patient Tamiflu-resistant swine flu was found in a teenager who hadn’t taken Roche Holding AG’s best-selling antiviral medicine, Hong Kong’s health department said.

Middle-Aged Widows Have Highest Risk of Developing Dementia, Study Finds People over 50 who suffer from negative emotions and disruption when they lose their partners have the highest risk of developing Alzheimer’s disease, according to a study published in the British Medical Journal.

Swine Flu Is More Severe Infection Than Seasonal Flu, Animal Study Finds Swine flu caused more-severe illness in ferrets than seasonal flu, according to two studies in the journal Science that help explain why the H1N1 virus causes symptoms not seen in regular flu such as nausea and vomiting.

Londoners Suffer Summer Wave of Influenza as Swine Flu Infections Mount Londoners are suffering a summer wave of influenza worse than in the last winter flu season after the H1N1 virus caused the rate of illness to quadruple last week.

Scotland's Sheep Keep Shrinking in Each Generation as Temperatures Rise Just as wool clothing shrinks in a hot wash, sheep on a remote Scottish island are getting smaller from one generation to the next as temperatures rise.

Hurricanes May Increase in Gulf as El Nino Shifts, Central Pacific Warms A shift of warming patterns in the Pacific Ocean may mean more seasons of increased hurricane activity in the Atlantic and more storms entering the oil-rich Gulf of Mexico, according to a study in the journal Science.

Heart Stem Cells From Human Embryo `Hot Spot' May Fix Damage, Study Says Stem cells found in the forming hearts of human embryos may help doctors repair damaged organs and understand life-threatening birth defects, Harvard University scientists said.

Vicodin, Tylenol's Risks of Liver Damage Face Restrictions by U.S. Panel Tylenol, a 50-year-old staple of household medicine cabinets, and Vicodin, the most prescribed drug in the U.S., may face new restrictions because of the risk of liver damage tied to the ingredient acetaminophen.

Common Gene Variations Linked to Schizophrenia, Three Studies Conclude Common variations in genes may underlie schizophrenia, the mental illness known to run in families for more than 100 years, with no one single variation conferring the majority of risk, three studies show.

Arctic Permafrost That May Melt Poses Global Climate Threat, Study Shows Arctic permafrost, the frozen soil beneath polar snow and ice, contains twice as much carbon as previously estimated and may spark a further increase in temperatures should global warming continue.