Factbox – Ricin: deadly, easily concealable poison

April 17 – Ricin, one of the deadliest poisons known, was found in a letter addressed to U.S. President Barack Obama, according to preliminary tests. Following are some key facts about ricin: – Ricin is made from castor beans, the same substance used to make castor oil. It can be found as a powder, mist, or pellet and is very difficult to trace. – Ricin is perhaps best known as the poison used to assassinate Bulgarian exile Georgi Markov in London in 1978. An agent injected Markov with a ricin pellet using a specially rigged umbrella. Markov died a few days later. – In the 1940s, the U.S. …

China says investigating human-to-human spread of bird flu

An employee works at a poultry farm on the outskirts of ShanghaiBy Sui-Lee Wee BEIJING (Reuters) – China is investigating the possibility of human-to-human transmission of a new strain of bird flu that has killed 17 people and is examining "family clusters" of people infected with the virus, a top health official was quoted as saying. Authorities have slaughtered thousands of birds and closed some live poultry markets to slow the rate of human infection. But many aspects of this new variety of bird flu remain a mystery, particularly whether the H7N9 strain is being transmitted between people. …

Supplier woes stir Apple demand fears, Asian parts makers dive

Customers visit the Apple store on 5th Avenue in New YorkBy Poornima Gupta and Noel Randewich SAN FRANCISCO (Reuters) – Apple Inc's shares fell below $400 on Wednesday for the first time since December 2011 after a U.S. chip supplier's disappointing revenue forecast fanned fears about weakening demand for the iPhone and iPad as competition intensifies. The surprise warning by Cirrus Logic Inc knocked down shares of key component suppliers like South Korea's LG Display Co Ltd and Japan's Toshiba Corp on Thursday in Asia, a region that supplies the lion's share of chips, cases and displays for the Cupertino, California-based company. …

Drug pipeline for worst superbugs "on life support": report

By Julie Steenhuysen CHICAGO (Reuters) – Only seven new drugs are in development for the treatment of infections caused by an especially nasty class of superbugs that include E. coli and CRE, the so-called “nightmare bacteria” that the U.S. Centers for Disease Control and Prevention raised alarms about last month. The data come from the latest report by the Infectious Diseases Society of America, or IDSA, released on Thursday, which has been tracking the rising number of bacteria that resist even the most potent antibiotics. …

War medicine now is helping Boston bomb victims

FILE - In this April 15, 2013 photo, an injured person is helped on the sidewalk near the Boston Marathon finish line following an explosion in Boston. The bombs that made Boston look like a combat zone have also brought battlefield medicine to their civilian victims. A decade of wars in Iraq and Afghanistan has sharpened skills and scalpels, leading to dramatic advances that are now being used to treat the 13 amputees and nearly a dozen other patients still fighting to keep damaged limbs. (AP Photo/MetroWest Daily News, Ken McGagh, File) MANDATORY CREDITThe bombs that made Boston look like a combat zone have also brought battlefield medicine to their civilian victims. A decade of wars in Iraq and Afghanistan has sharpened skills and scalpels, leading to dramatic advances that are now being used to treat the 13 amputees and nearly a dozen other patients still fighting to keep damaged limbs after Monday's attack.

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