Mitchell, Mark, and Dawn Zimmerman. “Infectious Diseases of North American Black Bears (Ursus americanus): Viral and Bacterial Pathogens (Part One)”. Wildlife Rehabilitation Bulletin 22, no. 2 (November 28, 2021): 37–42. Accessed April 20, 2024. https://nwrajournal.online/index.php/bulletin/article/view/226.