O vírus da Hepatite C

RETORNA

O VÍRUS DA HEPATITE C

The Hepatitis C Virus

HCV is a small (40 to 60 nm in diameter), enveloped, single-stranded RNA virus of the family Flaviviridae. Because the virus mutates rapidly, changes in the envelope protein may help it evade the immune system. There are at least 6 major genotypes and more than 50 subtypes of HCV. The different genotypes have different geographic distributions. Genotypes 1a and 1b are the most common in the United States. Genotypes 2 and 3 are present in only 10 to 20 percent of patients. There is little difference in the severity of disease or outcome of patients infected with different genotypes. However, patients with genotypes 2 and 3 are more likely to respond to alpha interferon treatment.

Fonte : http://www.niddk.nih.gov/health/digest/pubs/chrnhepc/chrnhepc.htm

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Última atualização em : domingo, 16 de maio de 2004 14:34

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