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Section 3. Summaries of Infectious Diseases

Astrovirus Infections

Clinical Manifestations
Etiology
Epidemiology
Diagnostic Tests
Treatment
Isolation of the Hospitalized Patient
Control Measures

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CLINICAL MANIFESTATIONS

Illness is characterized by diarrhea of short duration accompanied by vomiting, fever, and occasionally, abdominal pain and mild dehydration. Illness in an immunocompetent host is self-limited, lasting a median of 5 to 6 days. Asymptomatic infections are common.


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ETIOLOGY

Astroviruses are nonenveloped, single-stranded RNA viruses with a characteristic starlike appearance when visualized by electron microscopy. Eight human antigenic types are known.


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EPIDEMIOLOGY

Human astroviruses have a worldwide . . . [Go to Full Text]


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