Capitol Hill-AP -- A leading pediatric hospital isn't participating in the inoculation of health care workers across the country in case of a bioterrorist attack.
Philadelphia's Children's Hospital says there is a risk the virus in the vaccine could somehow be transmitted from the doctors and nurses to its patients.
Hospital officials told a Senate panel there's a fear some young patients, many with weakened immune systems, could be infected and possibly die.
Lawmakers also heard some reservations about the nationwide inoculation.
A union official warned that workers' compensation doesn't adequately cover employees who get sick after being inoculated.
Local governments say focusing funding on smallpox hurts preparedness against other bioterrorism agents, like anthrax and ricin (RY'-sin).