Title

Smallpox

Document Type

Report

Publication Date

1-1-2004

Abstract

Smallpox results from infection by variola virus (genus Orthopoxvirus, family Poxviridae). At least two strains of virus exist: the more virulent strain causes variola major and the less virulent strain causes variola minor.

The Orthopoxvirus genus also includes the vaccinia, monkeypox, cowpox, camelpox and ectromelia viruses; these agents resemble each other in electron micrographs and in many culture systems. They are also serologically cross–reactive. Monkeypox, which usually found in Africa, closely resembles smallpox; in monkeypox infections, the mortality rate is lower and the cervical and inguinal lymph nodes are highly enlarged.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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