Sep 17, 2024 · Another type of change is called "antigenic shift." Shift is an abrupt, major change in a flu A virus, resulting in new HA and/or new HA and NA proteins in flu viruses that infect …

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 …

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 refers to an abrupt, major change in a virus’s surface antigens. This process creates a new viral subtype to which most of the population lacks prior immunity, posing a …

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

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 …

Antigenic shift occurs when different influenza virus subtypes reassort their genetic material, leading to the emergence of novel strains. This can happen when different strains infect the …

The fast change is called “shift” — different strains of influenza can exchange genetic material if they infect the same cell at the same time. A new “hybrid” strain can emerge with surface …

Antigenic drift occurs in both influenza A and influenza B viruses. (Confusion can arise with two very similar terms, antigenic shift and genetic drift. Antigenic shift is a closely related process; …