This chat on arthritis was moderated by Dr. Richard Besser. NIAMS was invited to join the chat as an expert guest. Other organizations that participated included the NCCIH, the Centers for Disease Control and Prevention’s Office of Chronic Disease Prevention and Health Promotion, the Cleveland Clinic, and the Arthritis Foundation (AF), More than 1,500 tweets were sent using the #abcDrBchat hashtag. These tweets discussed the various types and prevalence of arthritis, as well as symptoms, diagnosis and treatment options. NIAMS tweets reached a potential audience of more than 28,000 Twitter followers. No archive of this chat is available.