Excellent channel with the latest updates and analysis of the covid situation. He explains things clearly and holds a centre ground, and is not unduly critical of governments, regulations, mandates etc. He puts the facts out there for the viewer to decide. I have not found a more informative source for all things related to covid.
I think Dr Campbell is somewhat humble in his own description of himself as a nurse tutor and retired nurse. I have since found this summary of his qualifications on Amazon:
About John Campbell
Dr. John Campbell is a Senior Lecturer in Nursing studies at the University of Cumbria. He has been a clinical nurse and a nurse tutor for over 30 years. In addition to writing books, he has also produced a range of videos and podcasts on various health and nursing related topics. As well as selling his materials in the Western countries, many are distributed at no cost, or low cost, to students in poorer countries.