Science of GCA

For those interested in the scientific details of the pathogens that generate ("pathogenesis") Giant Cell Arteritis, a summary of the research as of 2022 is at this link:

Giant Cell Arteritis is closely related to PMR.

There is also a video presentation from 2020 by one of the authors (Prof Samson) at the link below. Unfortunately the French accent is strong, but I was able to understand most of his words, if not all the science.
https://youtu.be/olcUZC8jyV4