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J Med Virol. 1994 Jun;43(2):166-70.

Benign human enterovirus becomes virulent in selenium-deficient mice.

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1
Frank Porter Graham Child Development Center, University of North Carolina, Chapel Hill.

Abstract

Coxsackieviruses have been implicated as possible co-factors in the etiology of the selenium (Se)-responsive cardiomyopathy known as Keshan disease. Here we report that a cloned and sequenced amyocarditic coxsackievirus B3 (CVB3/0), which causes no pathology in the hearts of Se-adequate mice, induces extensive cardiac pathology in Se-deficient mice. CVB3/0 recovered from the hearts of Se-deficient mice inoculated into Se-adequate mice induced significant heart damage, suggesting mutation of the virus to a virulent genotype. We demonstrate the important role of host nutritional status in determining the severity of a viral infection.

PMID:
8083665
[Indexed for MEDLINE]
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