Smallpox vaccination given more than 35 years ago may still offer important
protection, says a new report based on laboratorystudies by
immunologists at the University of North Carolina,Chapel Hill, and
published in the NewEngland Journal of Medicine
(2002;347:689-90)[Full
Text]. The report is importantbecause of fears
that terrorists may use smallpox virus as aweapon.
After smallpox was declared eliminated by the World Health Organization in
1980, immunisation stopped, leaving most youngerpeople vulnerable.
The smallpox virus is said to be held onlyat secure sites in the
United States and Russia, but rogue scientistsmay have taken it to
other nations. Stocks of smallpox vaccineare now being urgentlyreplenished.
When smallpox was still endemic it was recommended that revaccinations occur
frequentlyas often as
every year for hospitalworkers who may beexposed.
Dr Jeffrey Frelinger, professor and chairman of the Department of Immunology
at the University of North Carolina, and postdoctoralresearcher Dr
Mohammed Garba looked at the CD8 T lymphocyte responsesto vaccinia
virus. Their study included one unvaccinated person,four people who
had been vaccinated in the last five years becausethey worked with
vaccinia virus, and nine people who had beenvaccinated from six to
more than 35 yearspreviously.
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MATERIAL CONTAINED, PRESENTED, OR PROVIDED HERE IS FOR GENERAL INFORMATION
PURPOSES ONLY AND IS NOT TO BE CONSTRUED AS REFLECTING THE KNOWLEDGE OR OPINIONS
OF THE PUBLISHER, AND IS NOT TO BE CONSTRUED OR INTENDED AS PROVIDING MEDICAL OR
LEGAL ADVICE. THE DECISION WHETHER OR NOT TO VACCINATE IS AN IMPORTANT AND
COMPLEX ISSUE AND SHOULD BE MADE BY YOU, AND YOU ALONE, IN CONSULTATION WITH
YOUR HEALTH CARE PROVIDER.
"A foolish faith in authority is the worst enemy of truth."
-- Albert Einstein, letter to a friend, 1901
"I know of no safe depository of the ultimate powers of the society but the people themselves, and if we think them not enlightened enough to exercise control with a wholesome discretion, the remedy is not to take it from them, but to inform their discretion by education."
-- Thomas Jefferson, letter to William C. Jarvis, September 28, 1820
"What's the point of vaccination if it doesn't protect you from the unvaccinated?"
-- Sandy Gottstein
"Who gets to decide what the greater good is and how many will be sacrificed to it?"