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don't yet know if it's live and infectious, said Stephan Monroe, deputy director of the CDC center that handles highly dangerous infectious agents.
The six glass vials were intact and sealed, and scientists have yet to establish whether the virus is dead or alive, the Centers for Disease Control and Prevention said Tuesday. that unaccounted for smallpox has been discovered. But at least one leading scientist raised the possibility that there are more such vials out there around the world.
Smallpox can be deadly even after it is freeze dried, but the virus usually has to be kept cold to remain alive and dangerous.
photographer who worked above a lab handling smallpox died after being accidentally exposed to it through the ventilation system.
Global vaccination campaigns finally brought smallpox under control. After it was declared eradicated, all known remaining samples of live virus were stored at a CDC lab in Atlanta and at a Russian lab in Novosibirsk, Siberia.
far as I know, there was never a confirmation they had checked in with all groups who could have had the virus, he said.
Forgotten vials of smallpox found
are investigating. government health agency appeared to have mishandled a highly dangerous germ.
The labs take extreme precautions. Scientists must undergo fingerprint or retinal scans to get inside, they wear full body suits including gloves and goggles, and they shower with strong disinfectant before leaving the labs.
There has long been debate over whether to destroy the stockpile.
The samples were rushed under FBI protection to the CDC in Atlanta for testing. after which they will be destroyed.
Many scientists argue that any remaining samples pose a threat and that the deadly virus should be wiped off the planet altogether. Others contend the samples are needed for research on better treatments and vaccines.
No one has been infected, and no smallpox contamination was found in the building.
In an interview Tuesday, a CDC official said he believed the vials were stored for many years at room temperature, which would suggest the samples are dead. But FDA officials said later in the day that the smallpox was in cold storage for decades.
Officials said labeling indicated the smallpox had been put in the vials in the 1950s. But they said it's not clear how long the vials had been in the building, which did not open until the 1960s.
The freeze dried smallpox samples were found in a building at the National Nike Metcon 1 Buy Online Institutes of Health in Bethesda, Md., that has been used by the Food and Drug Administration since 1972, according to the CDC.
The scientist was cleaning out a cold room between two laboratories on July 1 when he made the discovery, FDA officials said.
Dr. Donald Henderson, who led the WHO smallpox eradication effort and is now a professor at the Center for Health Security at the University of Pittsburgh, said it is highly unlikely more such stashes will be discovered. But he conceded were pretty casual in Nike Metcon Orange
Heymann said that when smallpox samples were gathered up for destruction decades ago, requests went out to ministers of health to collect all vials.
Decades ago, he recalled, came back from many a trip carrying specimens, and I just put them in the refrigerator until I could get them to a laboratory. My wife didn't appreciate that. was one of the most lethal diseases in history. For centuries, it killed about one third of the people it infected, and left most survivors with deep scars on their faces from the pus filled lesions.
The last known case was in Britain in 1978, when a university Nike Kyrie Irving 3 Shoes
Peter Marks, deputy director of the FDA's Center for Biologics Research and Evaluation, said the discovery was unexpected but not a total shock. He added, however, that one's denying we should have done a better job cleaning out what was there. at least one other such episode, vials of smallpox were found at the bottom of a freezer in an Eastern European country in the 1990s, according to Dr. David Heymann, a former World Health Organization official who is now a professor at the London School of Hygiene and Tropical Medicine.
Last month, scores of CDC employees in Atlanta were feared exposed to anthrax because of a laboratory safety lapse. The CDC began giving them antibiotics as a precaution.
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