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In immunology, a memory B cell (MBC) is a type of B lymphocyte that forms part of the adaptive immune system. These cells develop within germinal centers of the secondary lymphoid organs. Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. Their function is to memorize the characteristics of the antigen that activated their parent B cell during initial infection such that if the memory B cell later encounters the same antigen, it triggers an accelerated and robust secondary immune response. Memory B cells have B cell receptors (BCRs) on their cell membrane, identical to the one on their parent cell, that allow them to recognize antigen and mount a specific antibody response.

The Klinaklini Glacier is a glacier west of the Klinaklini River and head of Knight Inlet the Coast Land District of British Columbia, Canada. It flows generally southward from Mt. Silverthrone. The glacier is one of the largest glaciers in western North America. The Hakai Institute has installed a weather station and camera above Klinaklini Glacier that will provide data in near real time to scientists and operational users.