A commercial Delaware lab may be able to reopen by next week after possibly getting some live anthrax spores from the Department of Defense.
State health officials say it will take a few days to decontaminate the facility.
The lab was ordered closed last Saturday after the military announced that it may have sent a shipment of anthrax to as many as nine labs across the country.
In addition, state health officials say a worker who is believed to have come into contact with a sample has not displayed any symptoms.
The Delaware Division of Public Health emphasized it is still not clear if the lab actually received any live anthrax.