parvoviruses

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Page 1: Parvoviruses
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• The Parvoviruses, show a still further degree of dependence .

smallest of all human viruses

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• Densovirinae

• Parvovirinae

• Parvovirus

• Dependoviruses

• Erythrovirus

• Bocavirus

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Genus Viruses Diseases

Erythrovirus B19 Erythema infectiosum, fetal infection, Aplastic anemia

Parvovirus RAV-1 Possibly implicated in rheumatoid arthritis

Bocavirus Newly discovered respiratory and enteric virus

Dependovirus Adeno-associated(AAV) types 1-5 AAV-2 possibly implicated in fetal infections

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• Erythema infectiosum

• Fetal infection

• Aplastic crisis

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• Infectious rash is sometimes known as (fifth disease).

• Slapped cheek syndrome

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teratogenic

hydrops fetalis

transfusion of the fetus with concentrated erythrocytes.

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Aplastic crisis(anemia)

• In chronic hemolytic anemia patients (SCA or thalassemia), parvovirus infection may precipitate an aplastic crisis with very low Hb and disappearance of circulating reticulocytes

fatal

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