Sep 17, 2024 · One way flu viruses change is called "antigenic drift." Drift consists of small changes (or mutations) in the genes of influenza viruses that can lead to changes in the …

Antigenic shift is the process by which two or more different strains of a virus, or strains of two or more different viruses, combine to form a new subtype having a mixture of the surface …

Antigenic shift, genetic alteration occurring in an infectious agent that causes a dramatic change in a protein called an antigen, which stimulates the production of antibodies by the immune …

Jan 7, 2022 · Antigenic shift refers to the gene recombination occurring when influenza viruses re-assort. Mutations causing minute changes in the hemagglutinin and neuraminidase antigens …

Influenza virus remains an important human pathogen causing recurring 'flu', largely due to its ability to constantly modify the antigenicity of its major glycoprotein, hemagglutinin (HA), in …

Antigenic shift is a major antigenic change that occurs when an influenza A virus that bears a novel HA (or novel HA and NA) antigenically distinct from that of previously circulating …

Sep 9, 2024 · Another type of change is called "antigenic shift." Shift is an abrupt, major change in an influenza A virus, resulting in new HA and/or new HA and NA proteins in influenza viruses …

Antigenic drift refers to slow, ongoing mutations that result in seasonal fluctuations in the flu, whereas antigenic shift refers to abrupt, significant changes that have the potential to trigger …

Mar 4, 2014 · Antigenic shift. Of greater public health concern is the process of antigenic shift – also called reassortment – through which at least two different viruses combine, resulting in …

Aug 10, 2022 · An antigenic change which results in drastic or dramatic alternation in HA (hemagglutinin) or NA (neuraminidase) subtypes. An antigenic change can alter antigenic sites …