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Cancer
Herd immunity, antibodies & COVID-19 / bile duct cancer / peripheral artery disease
![](https://newsnetwork.mayoclinic.org/n7-mcnn/7bcc9724adf7b803/uploads/2019/10/Radio-microphone-V4-1920x1080-1024x576.jpg)
On the Mayo Clinic Radio program, Dr. S. Vincent Rajkumar, a Mayo Clinic hematologist and researcher, discusses herd immunity, antibodies and how the body works to fight off disease. Dr. Bret Petersen, a Mayo Clinic gastroenterologist, will discuss treatment for bile duct cancer. And Dr. Randall DeMartino, a Mayo Clinic vascular surgeon, will explain peripheral artery disease, a common circulatory problem.
Information in this post was accurate at the time of its posting. Due to the fluid nature of the COVID-19 pandemic, scientific understanding along with guidelines and recommendations may have changed since the original publication date.
Check the Centers for Disease Control and Prevention website for additional updates on COVID-19. For more information and all your COVID-19 coverage, go to the Mayo Clinic News Network and mayoclinic.org.