Sentences with word «variola»
Availability There are two World Health Organisation - approved repositories of variola virus - one at the US Center for Disease Control and the other in Novosibirsk, Russia.
news.bbc.co.uk
They were surprised to find that the samples contained a small number of fragments of variola virus — the genetic remains of infection with the virus that causes smallpox.
«If smallpox is present, and it's variola major, you should see epidemics.»
The WHO last considered destroying the lab stocks in 2007, when it postponed the decision pending an assessment of whether more research on the live variola virus was needed.
The vials were labeled as containing variola and were packed in a cardboard box along with 10 other vials with unclear labels, ABC News reports.
This past December, WHO's smallpox advisory committee reported that the organization was «finalizing arrangements for the destruction of cloned variola virus DNA fragments that have been stored in South Africa.»
World Health Organization recommendations ban the synthesis of variola's full genome, and ordering its DNA might be difficult because some synthesis companies screen their orders.
Many scientists argue, however, that the variola stocks should be maintained, perhaps indefinitely.
The last samples of variola are kept under tight security in Russia and the United States.
Experts worry that the virus that causes it, variola, could be used in an act of bioterror or biological warfare.
Yesterday, a three - person CDC team flew the samples by government plane to Atlanta and transferred them to CDC's biosafety level 4 lab, where testing overnight revealed that the six labeled as variola virus were positive for variola DNA.
Smallpox is a viral infection caused by the variola virus.
After a vaccine was first introduced in 1796, the virus again changed, splitting into two forms, variola major and variola minor.
Today, except for laboratory stockpiles, the variola virus has been eliminated.
Smallpox is caused by the variola virus, which is believed to have been around since approximately 10,000 BCE.