Dr. John Campbell

Senior Nurse Educator

John Lorimer Campbell is an English YouTuber and retired nurse educator known for his videos about the COVID-19 pandemic. As of June 2023, his YouTube channel had 2.8 million subscribers and over 653 million views.

Campbell worked as a nursing educator at the University of Cumbria, and has experience as an emergency department nurse. He has also tutored healthcare workers in Cambodia and India. He is the author of the nursing-related bioscience textbooks Campbell's Physiology Notes and Campbell's Pathophysiology Notes. A review in Emergency Nurse magazine said that the latter textbook contained "excellent [and] inexpensive notes on the causes, pathophysiological changes, and clinical features seen in disease processes". In 2008, he established a YouTube channel to provide educational lectures on topics in health science and nursing.