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Basic Characteristics of Mutations
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Mutation Site
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E119V |
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Mutation Site Sentence
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Virus variants recovered from 2 patients had mutations in the M2, NA (with a previously recognized Glu119Val NA substitution), and hemagglutinin genes. |
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Mutation Level
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Amino acid level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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NA |
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Standardized Encoding Gene
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NA
|
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Genotype/Subtype
|
H4N2 |
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Viral Reference
|
-
|
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Functional Impact and Mechanisms
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Disease
|
Influenza A
Influenza B
|
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Immune
|
- |
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Target Gene
|
-
|
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Clinical and Epidemiological Correlations
|
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Clinical Information
|
- |
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Treatment
|
oseltamivir |
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Location
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Minnesota |
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Literature Information
|
|
PMID
|
16479508
|
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Title
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Recovery of drug-resistant influenza virus from immunocompromised patients: a case series
|
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Author
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Ison MG,Gubareva LV,Atmar RL,Treanor J,Hayden FG
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Journal
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The Journal of infectious diseases
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Journal Info
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2006 Mar 15;193(6):760-4
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Abstract
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Influenza virus with resistance to antiviral drugs emerges with increased frequency in immunocompromised patients and can limit the benefit of M2 and neuraminidase (NA) inhibitors. We document 3 cases of influenza in severely immunocompromised patients from whom virus variants with molecular markers of resistance to anti-influenza drugs were recovered. Virus variants recovered from 2 patients had mutations in the M2, NA (with a previously recognized Glu119Val NA substitution), and hemagglutinin genes. We describe a novel Asp198Asn NA mutation in an influenza B virus and its decreased susceptibility to both oseltamivir and zanamivir.
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Sequence Data
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AY947469- AY947472;AY947478 ;AY947476; AY9474767;AY947473-AY947475
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