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Title:

Diagnosis and Management of Smallpox

Authors:
Joel G. Breman, D. A. Henderson
Date posted:
April 25, 2002
Publication type:
Article
Publication:

N Engl J Med 2002;346(17):1300-1308

Publisher:
Massachusetts Medical Society
Availability:
Available on publisher's website
See also:

Full article as HTMLPDF

Introduction:

The last case of endemic smallpox occurred in Somalia in 1977, and eradication of the disease was declared in 1980. With no natural reservoir, variola virus, which causes smallpox, has existed only in laboratories; indeed, the last case of smallpox was due to infection acquired in a laboratory in the United Kingdom in 1978. During the global program of smallpox eradication, the World Health Organization (WHO) made concerted efforts to decrease the number of laboratories retaining variola virus. On the basis of contacts with all countries and a total of 823 microbiology institutions, 76 such laboratories had been identified by 1978. By 1984, only the Centers for Disease Control and Prevention (CDC), in Atlanta, and the Research Institute of Viral Preparations, in Moscow, retained variola virus isolates. In 1994, the Russian isolates were moved to the State Research Center of Virology and Biotechnology (the Vektor Institute), in Novosibirsk, Russia.

"There is concern that variola virus resides outside these laboratories and could be used as a weapon by terrorists. Possible sources are virus in countries that claim that they destroyed their stocks but did not and virus acquired from laboratories in the former Soviet Union. An accidental or deliberate release of smallpox could cause a major epidemic. Because vaccination against smallpox has not been performed routinely in the United States since 1972 and in the rest of the world since about 1982, there is now a large population of susceptible persons. Thus, if an outbreak occurred, prompt recognition and institution of control measures would be important.

Full article as HTMLPDF

 

 

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