International scientists who last year halted controversial research with the deadly bird flu say they are resuming their work as countries adopt new rules to ensure safety.
The second of two bird flu studies once considered too risky to publish was released Thursday, ending a saga that pitted concerns about terrorism against fears of a deadly global epidemic.
Four months ago the U.S. government sought to block publication of two studies about how scientists created an easily spread form of bird flu. Now a revised version of one paper is seeing the light of day with the government's blessing.
A scientist who created an easier-to-spread version of the bird flu said his work isn't as risky as people fear. The U.S. government is asking its biosecurity advisers to reconsider if the research should be made public.