Morning Rounds: Arthritis, immunotherapy and strokes
This week the CDC published a "Vital Signs" report highlighting the growing incidence of arthritis, estimated to affect about 54 million adults in the country. Also: CBS News chief medical correspondent Dr. Jon LaPook previews his "Sunday Morning" report on immunotherapy, which harnesses the body's own immune system to find and destroy cancer cells; and CBS News contributor Dr. Tara Narula reports on an innovation in stroke treatment.