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DISQUISITIONS ON ORIGINAL ANTIGENIC SIN [PDF]

open access: bronzeJournal of Experimental Medicine, 1966
Experiments in rabbits were designed to test the two unproven assumptions of the hypothesis proposed in the companion paper (1): that Original Antigenic Sin is fundamentally a restricted anamnestic response, and that there exists a trapping mechanism capable of deflecting antigen from one kind of cell and guiding it to another.
Webster R G
exaly   +7 more sources

Original antigenic sin in dengue revisited. [PDF]

open access: bronzeProc Natl Acad Sci U S A, 2013
The four dengue virus serotypes (DENV-1 to -4) cause the most important arthropod-borne viral disease of humans, with ∼100 million cases each year and over 3 billion people at risk for infection (1). The immune response to DENV infection is complex, because it can be either protective or pathogenic.
Zompi S, Harris E.
europepmc   +6 more sources

Original Antigenic Sin and Pandemic (H1N1) 2009 [PDF]

open access: yesEmerging Infectious Diseases, 2010
To the Editor: While pandemic (H1N1) 2009 was in its earliest stages, age distribution data indicated surprisingly few cases among persons >65 years of age. The initial assumption was that few persons >65 years of age had yet to be exposed. However, as more data became available from Mexico, Australia, and the United States, the age distribution ...
Amesh A. Adalja, D.A. Henderson
doaj   +4 more sources

Antibody Dependent Enhancement Due to Original Antigenic Sin and the Development of SARS [PDF]

open access: goldFrontiers in Immunology, 2020
Human coronavirus (HCoV) is one of the most common causes of respiratory tract infections throughout the world. Two phenomena observed so far in the development of the SARS-CoV-2 pandemic deserve further attention. First, the relative absence of clinical
Walter Fierz, Brigitte Walz
doaj   +4 more sources

Thyroid Autoantibodies Display both “Original Antigenic Sin” and Epitope Spreading [PDF]

open access: yesFrontiers in Immunology, 2017
Evidence for original antigenic sin in spontaneous thyroid autoimmunity is revealed by autoantibody interactions with immunodominant regions on thyroid autoantigens, thyroglobulin (Tg), thyroid peroxidase (TPO), and the thyrotropin receptor (TSHR) A ...
Sandra M. McLachlan, Basil Rapoport
doaj   +4 more sources

Antibodies with 'Original Antigenic Sin' Properties Are Valuable Components of Secondary Immune Responses to Influenza Viruses. [PDF]

open access: goldPLoS Pathogens, 2016
Human antibodies (Abs) elicited by influenza viruses often bind with a high affinity to past influenza virus strains, but paradoxically, do not bind to the viral strain actually eliciting the response.
Susanne L Linderman, Scott E Hensley
doaj   +4 more sources

An In-Depth Analysis of Original Antigenic Sin in Dengue Virus Infection [PDF]

open access: greenJ Virol, 2011
ABSTRACTThe evolution of dengue viruses has resulted in four antigenically similar yet distinct serotypes. Infection with one serotype likely elicits lifelong immunity to that serotype, but generally not against the other three. Secondary or sequential infections are common, as multiple viral serotypes frequently cocirculate. Dengue infection, although
Midgley C   +15 more
europepmc   +13 more sources

Original antigenic sin: A comprehensive review

open access: bronzeJournal of Autoimmunity, 2017
The concept of "original antigenic sin" was first proposed by Thomas Francis, Jr. in 1960. This phenomenon has the potential to rewrite what we understand about how the immune system responds to infections and its mechanistic implications on how vaccines should be designed.
Diana M Monsalve   +2 more
exaly   +5 more sources

SARS-CoV-2 vaccination washes away original antigenic sin. [PDF]

open access: bronzeTrends Immunol, 2022
According to Röltgen and colleagues vaccination generates antibody breadth, whereas SARS-CoV-2 infection does not. Vaccination results in germinal center B cell responses and generates immunological breadth, with antibodies that bind viral variants. COVID-19 from SARS-CoV-2 infection does not induce germinal centers; it sustains immune imprinting, also
Pillai S.
europepmc   +5 more sources

Vaccination impairs de novo immune response to omicron breakthrough infection, a precondition for the original antigenic sin [PDF]

open access: goldNature Communications
Several studies have suggested the imprinting of SARS-CoV-2 immunity by original immune challenge without addressing the formation of the de novo response to successive antigen exposures.
Jernej Pušnik   +6 more
doaj   +4 more sources

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