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Myocarditis and pericarditis, which mysteriously skew young and male, can arise from an array of triggers, including bacteria and fungi as well as medications and autoimmune disease, but many cases go entirely unexplained. There’s no curative, or even standard, treatment for either condition; doctors try to manage symptoms and tamp down inflammation, said John Jarcho, a cardiovascular-medicine specialist at Brigham and Women’s Hospital, in Boston. Cases related to vaccines are more puzzling still. Only a few immunizations have previously been linked to heart inflammation, among them the smallpox vaccine, which looks nothing like the jabs we’re doling out now. Researchers...

Three refugees were detained and five more treated in hospital after a vicious brawl broke out at a migrant center in the German city of Dortmund. Police have launched a criminal investigation but are still puzzled over the exact cause of the violence. Scenes similar to an all-out street fight first appeared in a video on Facebook, which was then shared on other social media platforms. The footage shows men and a woman punching and kicking one another. Some of those involved are seen in the footage smashing chairs over the backs of fellow migrants.Only eight refugees, aged between 14...

I recently ordered a gun (long rifle). Went down to pick it up today and was turned down. Puzzled - I purchased a new hand gun in December 08. Any thoughts??

SACRAMENTO - Gov. Arnold Schwarzenegger expressed a new reaction Wednesday morning to one of President Bush's key policies: disbelief. Schwarzenegger, who campaigned for Bush's re-election's in 2004, said he couldn't understand the president's threat to veto pending federal legislation that would provide new money for children's health coverage. "When you hear decisions like that you say to yourself, ' What has happened? Why? Why would you go after children? Why would you not want to insure them?" said Schwarzenegger at a news conference promoting children's health insurance. "We all sit there and say 'Where did that come from? You can't...

WASHINGTON - Astronomers have stumbled upon a tremendous hole in the universe. That's got them scratching their heads about what's just not there. The cosmic blank spot has no stray stars, no galaxies, no sucking black holes, not even mysterious dark matter. It is 1 billion light years across of nothing. That's an expanse of nearly 6 billion trillion miles of emptiness, a University of Minnesota team announced Thursday. Astronomers have known for many years that there are patches in the universe where nobody's home. In fact, one such place is practically a neighbor, a mere 2 million light years...

NASA's Spirit Mars rover has arrived at a site dubbed "Home Plate" within Gusev crater. But what the robot found has left scientists puzzled. As the Mars machinery relays images of the area, the sightseeing has sparked healthy debate within the team running the mission. "Well, so far it has been great," said Steve Squyres, lead Mars Rover Exploration scientist at Cornell University. "It's the most spectacular layered rock we've ever seen at Gusev," he told SPACE.com. The images relayed so far by Spirit of Home Plate "really are stunning," Squyres added. "Many of us were pretty much reduced to...