“ There frightening number accidents best laboratories United States mishandling escape dangerous pathogens , ” Relman said. “ There laboratory , investigator , system foolproof , best laboratories safe one would thought. ” The Centers Disease Control Prevention ( CDC ) admitted last year mishandled samples Ebola recent outbreak , potentially exposing lab workers deadly disease.In year , CDC lab accidentally contaminated mild strain bird flu virus deadly H5N1 mailed unsuspecting researchers.And 60 year-old vial smallpox ( contagious virus effectively eradicated worldwide vaccination program ) discovered sitting unused storage room U.S. Food Drug Administration lab.Earlier year , U.S. Army accidentally shipped samples live anthrax hundreds labs around world.Similar problems reported labs around world .