共 79 条
Genetic epidemiology of hepatitis C virus throughout Egypt
被引:287
作者:

Ray, SC
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机构: Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA

Arthur, RR
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机构: Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA

Carella, A
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h-index: 0
机构: Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA

Bukh, J
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h-index: 0
机构: Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA

Thomas, DL
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机构: Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA
机构:
[1] Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA
[2] NIAID, Hepatitis Viruses Sect, NIH, Bethesda, MD 20892 USA
[3] WHO, CH-1211 Geneva, Switzerland
关键词:
D O I:
10.1086/315786
中图分类号:
R392 [医学免疫学];
Q939.91 [免疫学];
学科分类号:
100102 ;
摘要:
Hepatitis C virus (HCV) infection is a major health problem in Egypt, where the seroprevalence is 10-20-fold higher than that in the United States. To characterize the HCV genotype distribution and concordance of genotype assessments on the basis of multiple genomic regions, specimens were obtained from blood donors in 15 geographically diverse governorates throughout Egypt. The 5' noncoding, core/E1, and NS5B regions were amplified by reverse transcription-polymerase chain reaction and analyzed by both restriction fragment length polymorphism (RFLP) and phylogenetic tree construction. For the 5' noncoding region, 122 (64%) of 190 specimens were amplified and analyzed by RFLP: 111 (91%) were genotype 4, 1 (1%) was genotype 1a, 1 (1%) was genotype 1b, and 9 (7%) could not be typed. Phylogenetic analyses of the core/E1 and NS5B regions confirmed the genotype 4 preponderance and revealed evidence of 3 new subtypes, Analysis of genetic distance between isolates was consistent with the introduction of multiple virus strains 75-140 years ago, and no clustering was detected within geographic regions, suggesting widespread dispersion at some time since then.
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页码:698 / 707
页数:10
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