an·ti·gen

(ăn′tĭ-jən) also an·ti·gene (-jēn′)

A molecule that is capable of binding to an antibody or to an antigen receptor on a T cell, especially one that induces an immune response. An antigen is usually a foreign substance, such as a toxin or a component of a virus, bacterium, or parasite.

an′ti·gen′ic (-jĕn′ĭk) adj.

an′ti·gen′i·cal·ly adv.

an′ti·ge·nic′i·ty (-jə-nĭs′ĭ-tē) n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Adj.

antigenic - of or relating to antigens

Translations

antigeeninen

an·ti·gen·ic

a. antigénico-a, que tiene las propiedades de un antígeno;

___ determinant → determinante ___;

___ drift → variaciones antigénicas menores;

___ shift → variación ___ mayor;

___ specificity → especificidad ___.

English-Spanish Medical Dictionary © Farlex 2012

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References in periodicals archive

Because the influenza virus is constantly undergoing a process known as antigenic drift, new variants of the virus may emerge from year to year, and the vaccine which was protective during one influenza season may not be fully protective during the following year.

CEL-SCI announces review published in International Immunopharmacology

The molecular determinants of antibody recognition and antigenic drift in the H3 hemagglutinin of swine influenza A virus.

Human-Origin Influenza A(H3N2) Reassortant Viruses in Swine, Southeast Mexico

Antigenic testing of available influenza A and B viruses indicated that no significant antigenic drift in circulating viruses had emerged.

Update: Influenza Activity--United States and Worldwide, May 20-October 13, 2018

(3) The seasonal vaccine must account for this antigenic drift to be effective.

Influenza vaccine: Calling the shots: To stay effective, flu vaccines must keep pace with rapidly mutating viruses

In addition, the tests capability to detect multiple segments of RNA improves strain coverage and prevents loss of sensitivity as natural variations (antigenic drift and shift) of the Influenza virus occur.

Cepheid passes US FDA clearance and CLIA Waiver for Xpert Xpress flu test

Since several different viruses cause seasonal influenza and these viruses are subject to continual antigenic changes ('antigenic drift'), World Health Organization (WHO) every year recommends a new strain-specific vaccine in February for the northern hemisphere and in September for the south to prevent infection.

Infections likely to soar in 2018

Because influenza viruses mutate rapidly (antigenic drift) and dominant strains can vary from year to year, people are advised to be vaccinated yearly with the newest vaccine.

Shorts

(70) Recently, the documentation of the antigenic drift from the vaccine strain in a majority of considered isolates raised concern that vaccine effectiveness might be suboptimal, especially in older ages or specific high-risk groups.

A narrative review of influenza: A seasonal and pandemic disease

The two new mechanisms of change in influenza strains are antigenic drift and antigenic shift.

Flu, measles, pertussis outbreaks guide management

This may be due to less degree of antigenic drift in the influenza virus." " This type of weather is never expected in the month of December.

Swine f lu cases drop as Delhi winter plays truant