Erasmus Medical College, University of Wisconsin Flu Researchers Pause to Weigh Risks After Creating More Lethal Strain  
1/20/2012 3:35:59 PM

(Reuters) - Researchers studying a potentially deadlier, airborne version of the bird flu virus have voluntarily suspended their studies for 60 days because of concerns it could be used as a devastating form of bioterrorism, according to a letter published in the journals Nature and Science on Friday.