Open AccessInsights into the virologic and immunologic features of SARS-COV-2
Author(s) -
Ceylan Polat,
Koray Ergünay
Publication year - 2021
Publication title -
world journal of clinical cases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.368
H-Index - 10
ISSN - 2307-8960
DOI - 10.12998/wjcc.v9.i19.5007
Subject(s) - medicine , immunology , acquired immune system , innate immune system , immunity , immune system , coronavirus , disease , vaccination , antibody , virology , epitope , virus , antigen , covid-19 , infectious disease (medical specialty) , pathology
The host immunity is crucial in determining the clinical course and prognosis of coronavirus disease 2019, where some systemic and severe manifestations are associated with excessive or suboptimal responses. Several antigenic epitopes in spike, nucleocapsid and membrane proteins of severe acute respiratory syndrome coronavirus 2 are targeted by the immune system, and a robust response with innate and adaptive components develops in infected individuals. High titer neutralizing antibodies and a balanced T cell response appears to constitute the optimal immune response to severe acute respiratory syndrome coronavirus 2, where innate and mucosal defenses also contribute significantly. Following exposure, immunological memory seems to develop and be maintained for substantial periods. Here, we provide an overview of the main aspects in antiviral immunity involving innate and adaptive responses with insights into virus structure, individual variations pertaining to disease severity as well as long-term protective immunity expected to be attained by vaccination.