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Basic Characteristics of Mutations
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Mutation Site
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I216T |
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Mutation Site Sentence
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Among the 67 A(H1N1)pdm09-positive specimens that were successfully sequenced, 62 (> 90%) belonged to the emerging genetic 6B.1 subclade, defined by S162N (potential gain of glycosylation) and I216T mutations in the haemagglutinin protein. |
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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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HA |
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Standardized Encoding Gene
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HA
|
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Genotype/Subtype
|
H1N1 |
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Viral Reference
|
-
|
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Functional Impact and Mechanisms
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Disease
|
Influenza A
|
|
Immune
|
- |
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Target Gene
|
-
|
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Clinical and Epidemiological Correlations
|
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Clinical Information
|
- |
|
Treatment
|
- |
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Location
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Canada |
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Literature Information
|
|
PMID
|
27020673
|
|
Title
|
Interim estimates of 2015/16 vaccine effectiveness against influenza A(H1N1)pdm09, Canada, February 2016
|
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Author
|
Chambers C,Skowronski DM,Sabaiduc S,Winter AL,Dickinson JA,De Serres G,Gubbay JB,Drews SJ,Martineau C,Eshaghi A,Krajden M,Bastien N,Li Y
|
|
Journal
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Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
|
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Journal Info
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2016;21(11):30168
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Abstract
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Using a test-negative design, the Canadian Sentinel Practitioner Surveillance Network (SPSN) assessed interim 2015/16 vaccine effectiveness (VE) against influenza A(H1N1)pdm09 viruses. Adjusted VE showed significant protection of 64% (95% confidence interval (CI): 44-77%) overall and 56% (95%CI: 26-73%) for adults between 20 and 64 years-old against medically attended, laboratory-confirmed A(H1N1)pdm09 illness. Among the 67 A(H1N1)pdm09-positive specimens that were successfully sequenced, 62 (> 90%) belonged to the emerging genetic 6B.1 subclade, defined by S162N (potential gain of glycosylation) and I216T mutations in the haemagglutinin protein. Findings from the Canadian SPSN indicate that the 2015/16 northern hemisphere vaccine provided significant protection against A(H1N1)pdm09 illness despite genetic evolution in circulating viruses.
|
|
Sequence Data
|
-
|