Originally published on Mon September 9, 2013 8:24 am
The percentage of middle and high school students who have tried electronic cigarettes more than doubled in a year, federal health officials reported Thursday.
The percentage of students in grades 6 through 12 who had ever used e-cigarettes increased from 3.3 percent in 2011 to 6.8 percent in 2012, the Centers for Disease Control and Prevention reported in Morbidity and Mortality Weekly Report. Those who reported currently using the devices increased from 1.1 percent to 2.1 percent.
With its meticulous criminal craftsmen, cheap labor and, by some accounts, less effective law enforcement, Peru has in the past two years overtaken Colombia as the No. 1 source of counterfeit U.S. dollars, says the U.S. Secret Service, protector of the world's most widely traded currency. ...
Signs of tuberculosis have been found in ancient Egyptian mummies, such as this one in London's British Museum.
Credit Courtesy of Sebastien Gagneux
How tuberculosis conquered the world: TB bacteria accompanied people out of Africa about 50,000 years ago (top). These strains then spread around the world as people colonized Asia and the Americas (bottom).