Antigenic Drift and Shift

Antigenisk drift och skifte

Engelsk definition

Changes in the ANTIGEN population by slow and minor (antigenic drift) or sudden and major mutations (antigenic shift). Accumulation of minor mutations in antigenic drift over time may require development of new vaccine (e.g., seasonal FLU VACCINES). Antigenic shift on the other hand is less common but may result in emergence of a new subtype or species and sometimes pandemics (e.g., H1N1 pandemics in 2009 and 2018 and COVID-19) due to lack of HERD IMMUNITY to the newly emerged novel pathogen.

Svenska synonymer

Antigen drift Antigent skifte

Engelska synonymer

Antigenic Shift and Drift Antigen Shift and Drift Antigen Drift and Shift Antigenic Shift Shift, Antigenic Antigen Shift Shift, Antigen Antigenic Escape Escape, Antigenic Antigen Escape Escape, Antigen Antigenic Drift Drift, Antigenic Antigen Drift Drift, Antigen