US attorney, FBI join probe into hospital hepatitis C outbreak as lawsuits emerge

The U. S. attorney's office has joined the investigation into the hepatitis C outbreak at  New Hampshire's Exeter Hospital's cardiac catheterization lab.State public health officials have said they suspect a lab employee's misuse of drugs led to the outbreak. A hospital worker and 19 of the lab's patients have tested positive for the liver-destroying disease since the investigation began last month.