Smallpox causes

Smallpox Microchapters
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Overview
Historical Perspective Eradication Post-Eradication
Pathophysiology
Causes
Differentiating Smallpox from other Diseases
Epidemiology and Demographics
Risk Factors
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Criteria
History and Symptoms
Physical Examination
Laboratory Findings
Treatment
Medical Therapy
Primary Prevention
Outbreak Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: João André Alves Silva, M.D. [2]

Overview

Smallpox is caused by the variola virus.

Taxonomy

Viruses; dsDNA; Poxviridae; Orthopoxvirus; Variola vera

Natural reservoir

Humans are the only natural reservoir of smallpox virus.