Inventory
Uncovers 9,200 More Pathogens
Laboratory Says
Security Is Tighter, but Earlier Count Missed Dangerous
Vials
By Nelson Hernandez
Washington Post Staff Writer
Thursday, June 18, 2009
An
inventory of potentially deadly pathogens at Fort Detrick's infectious
disease laboratory found more than 9,000 vials that had not been
accounted for, Army officials said yesterday, raising concerns that
officials wouldn't know whether dangerous toxins were
missing.
After four
months of searching about 335 freezers and refrigerators at the U.S.
Army Medical Research Institute of Infectious Diseases in Frederick,
investigators found 9,220 samples that hadn't been included in a
database of about 66,000 items listed as of February, said Col. Mark
Kortepeter, the institute's deputy commander.
The vials
contained some dangerous pathogens, among them the Ebola virus,
anthrax bacteria and botulinum toxin, and less lethal agents such as
Venezuelan equine encephalitis virus and the bacterium that causes
tularemia. Most of them, forgotten inside freezer drawers, hadn't been
used in years or even decades. Officials said some serum samples from
hemorrhagic fever patients dated to the Korean War.
Kortepeter
likened the inventory to cleaning out the attic and said he knew of no
plans for an investigation into how the vials had been left out of the
database. "The vast majority of these samples were working stock
that were accumulated over decades," he said, left there by
scientists who had retired or left the institute.
"I can't say that nothing did [leave the lab], but I can say that
we think it's extremely unlikely," Kortepeter said.
Still, the
overstock and the previous inaccuracy of the database raised the
possibility that someone could have taken a sample outside the lab
with no way for officials to know something was missing.
"Nine
thousand, two hundred undocumented samples is an extraordinarily
serious breach," said Richard H. Ebright, a professor at Rutgers
University who follows biosecurity. "A small number would be a
concern; 9,200 . . . at an institution that has been the focus of
intense scrutiny on this issue, that's deeply worrisome.
Unacceptable."
The
institute has been under pressure to tighten security in the wake of
the 2001 anthrax attacks, which killed five people and sickened 17.
FBI investigators say they think the anthrax strain used in the
attacks originated at the Army lab, and its prime suspect, Bruce E.
Ivins, researched anthrax there. Ivins committed suicide last year
during an investigation into his activities.
Kortepeter
noted that since 2001 the lab has imposed multiple layers of security
to check people entering and leaving, that there are now cameras in
the labs, and that employees are subjected to a reliability program
and random inspections.
"The
bottom line is, we have a lot of buffers to prevent anybody who
shouldn't be getting into the laboratory," Kortepeter
said.
Sam Edwin,
the institute's inventory control officer, said most of the samples
found were vials with tiny amounts of pathogens that would thaw
quickly and die once they were taken out of a freezer, making
smuggling something off the base difficult.
The probe
began in February, when a problem accounting for Venezuelan equine
encephalitis virus triggered the suspension of most research at the
lab. A spot check in January found 20 samples of the virus in a box of
vials instead of the 16 listed in the institute's database. Most work
was stopped until the institute could take a thorough inventory of its
stock of viruses and bacteria.
Edwin said
about 50 percent of the samples that had been found were destroyed.
The rest were added to the catalog. Because the lab will now conduct
an inventory every year, "it's really less likely that we will be
in a situation like this again," he said.
Procedures
have changed, too. Scientists who have worked at the lab said that in
the past, departing scientists turned over their logbooks to their
successors, but records were sometimes incomplete or complex. As
generations of scientists passed through, the knowledge of what was in
the freezers was lost. With a comprehensive database, every sample is
now tracked until it is destroyed or transferred.
But some
scientists are skeptical. Unlike uranium or chemical weapons,
pathogens are living materials that can replicate and die. A small
amount can easily be turned into a large amount. They said the strict
inventories slow their work without guaranteeing security.