Early Warning
| April 29, 2002
Stung by anthrax mailings after suicide skyjackings, the United States is hurrying to erect an electronic line of defense against further bioterrorism. At least five sophisticated biosurveillance systems are under development with federal funding to nonprofit and to proprietary ventures; two other groups already have products on the market. The goal is to install a national sentinel network that can detect suspicious trends in medical data and in illness behavior before diagnosis, to help contai




