Results 21 to 30 of about 13,481 (242)

Assessing Antigenic Drift of Seasonal Influenza A(H3N2) and A(H1N1)pdm09 Viruses. [PDF]

open access: yesPLoS ONE, 2015
Under selective pressure from the host immune system, antigenic epitopes of influenza virus hemagglutinin (HA) have continually evolved to escape antibody recognition, termed antigenic drift.
Nipaporn Tewawong   +8 more
doaj   +1 more source

Patterns of predicted T-cell epitopes associated with antigenic drift in influenza H3N2 hemagglutinin. [PDF]

open access: yesPLoS ONE, 2011
Antigenic drift allowing escape from neutralizing antibodies is an important feature of transmission and survival of influenza viruses in host populations.
E Jane Homan, Robert D Bremel
doaj   +1 more source

Identification and Characterization of Novel Antibody Epitopes on the N2 Neuraminidase

open access: yesmSphere, 2021
The influenza virus neuraminidase is an emerging target for universal influenza virus vaccines. However, in contrast to influenza virus hemagglutinin, we know little about antibody epitopes and antigenic sites on the neuraminidase.
Ericka Kirkpatrick Roubidoux   +8 more
doaj   +1 more source

Simulating antigenic drift and shift in influenza A [PDF]

open access: yesProceedings of the 2009 ACM symposium on Applied Computing, 2009
Computational models of the immune system and pathogenic agents have several applications, such as theory testing and validation, or as a complement to first stages of drug trials. One possible application is the prediction of the lethality of new Influenza A strains, which are constantly created due to antigenic drift and shift.
Nuno Fachada   +2 more
openaire   +1 more source

Evidence for adaptive evolution in the receptor-binding domain of seasonal coronaviruses OC43 and 229e

open access: yeseLife, 2021
Seasonal coronaviruses (OC43, 229E, NL63, and HKU1) are endemic to the human population, regularly infecting and reinfecting humans while typically causing asymptomatic to mild respiratory infections.
Kathryn E Kistler, Trevor Bedford
doaj   +1 more source

The antigenic evolution of influenza: drift or thrift? [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2013
It is commonly assumed that antibody responses against the influenza virus are polarized in the following manner: strong antibody responses are directed at highly variable antigenic epitopes, which consequently undergo ‘antigenic drift’, while weak antibody responses develop against conserved epitopes.
Wikramaratna, Paul S.   +3 more
openaire   +5 more sources

Influenza A gradual and epochal evolution: insights from simple models.

open access: yesPLoS ONE, 2009
The recurrence of influenza A epidemics has originally been explained by a "continuous antigenic drift" scenario. Recently, it has been shown that if genetic drift is gradual, the evolution of influenza A main antigen, the haemagglutinin, is punctuated ...
Sébastien Ballesteros   +2 more
doaj   +1 more source

A Bayesian approach to incorporate structural data into the mapping of genotype to antigenic phenotype of influenza A(H3N2) viruses.

open access: yesPLoS Computational Biology, 2023
Surface antigens of pathogens are commonly targeted by vaccine-elicited antibodies but antigenic variability, notably in RNA viruses such as influenza, HIV and SARS-CoV-2, pose challenges for control by vaccination. For example, influenza A(H3N2) entered
William T Harvey   +8 more
doaj   +1 more source

Integrating influenza antigenic dynamics with molecular evolution

open access: yeseLife, 2014
Influenza viruses undergo continual antigenic evolution allowing mutant viruses to evade host immunity acquired to previous virus strains. Antigenic phenotype is often assessed through pairwise measurement of cross-reactivity between influenza strains ...
Trevor Bedford   +9 more
doaj   +1 more source

Glycosylation focuses sequence variation in the influenza A virus H1 hemagglutinin globular domain. [PDF]

open access: yesPLoS Pathogens, 2010
Antigenic drift in the influenza A virus hemagglutinin (HA) is responsible for seasonal reformulation of influenza vaccines. Here, we address an important and largely overlooked issue in antigenic drift: how does the number and location of glycosylation ...
Suman R Das   +5 more
doaj   +1 more source

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