Results 41 to 50 of about 4,761,340 (218)
Vaccines, 2019 Neuraminidase (NA) content is not standardized in current seasonal influenza vaccines; neither anti-NA antibodies (anti-NA Abs) are measured nor is it well-defined as a correlate of humoral protection. In this work, the presence of NA1 antibodies against
Jose Manuel Mendez-Legaza +2 more
doaj +1 more source
Pre-Pandemic Cross-Reactive Immunity against SARS-CoV-2 among Central and West African Populations
Viruses, 2022 For more than two years after the emergence of COVID-19 (Coronavirus Disease-2019), significant regional differences in morbidity persist. These differences clearly show lower incidence rates in several regions of the African and Asian continents.
Marc Souris +16 more
doaj +1 more source
Original antigenic sin: A comprehensive review
, 2020 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
Gershwin M.E. +5 more
core +1 more source
Cross protection to SARS-CoV-2 variants in hamsters with naturally-acquired immunity
Virology Journal, 2023 Since SARS-CoV-2 was first reported in late 2019, multiple variations of the original virus have emerged. Each variant harbors accumulations of mutations, particularly within the spike glycoprotein, that are associated with increased viral ...
Saina Beitari +6 more
doaj +1 more source
Frontiers in Immunology, 2023 The first exposure to influenza is presumed to shape the B-cell antibody repertoire, leading to preferential enhancement of the initially formed responses during subsequent exposure to viral variants.
Petra Mooij +23 more
doaj +1 more source
Antigenic drift in H5N1 avian influenza virus in poultry is driven by mutations in major antigenic sites of the hemagglutinin molecule analogous to those for human influenza virus [PDF]
, 2011 H5N1 highly pathogenic avian influenza virus has been endemic in poultry in Egypt since 2008, notwithstanding the implementation of mass vaccination and culling of infected birds.
Arafa, Abdel +19 more
core +1 more source
Contemporaneous SARS-CoV-2-Neutralizing Antibodies Mediated by N-glycan Shields
Viruses, 2023 Mutations and the glycosylation of epitopes can convert immunogenic epitopes into non-immunogenic ones via natural selection or evolutionary pressure, thereby decreasing their sensitivity to neutralizing antibodies.
Leili Baghaie +5 more
doaj +1 more source
Vaccines, 2018 The first exposure to influenza is thought to impact subsequent immune responses later in life. The consequences of this can be seen during influenza epidemics and pandemics with differences in morbidity and mortality for different birth cohorts.
Ewan P. Plant +5 more
doaj +1 more source
Diabetes with hypertension as risk factors for adult dengue hemorrhagic fever in a predominantly dengue serotype 2 epidemic: a case control study. [PDF]
, 2012 BACKGROUND: Dengue hemorrhagic fever (DHF) is a severe form of dengue, characterized by bleeding and plasma leakage. A number of DHF risk factors had been suggested.
Kee Seng Chia +41 more
core +2 more sources
HLA, Immune Response, and Susceptibility to COVID-19
Frontiers in Immunology, 2021 The severe acute respiratory syndrome caused by Coronavirus 2 (SARS-CoV-2) that appeared in December 2019 has precipitated the global pandemic Coronavirus Disease 2019 (COVID-19).
Fataneh Tavasolian +9 more
doaj +1 more source