Template:POTD/2022-05-24
[[File:|300px|Brigid Balfour]]
Brigid Balfour (24 May 1914 – 1 March 1994) was a British scientist who studied cellular morphology and ultrastructure in relation to immune function. She advanced the study of dendritic cells, realising that they are derived from Langerhans cells and play an important role in initiating and promoting immune reactions.Photograph credit: National Institute for Medical Research; restored by Adam Cuerden