SRNA hosted an Ask the Expert podcast, in collaboration with Centers for Disease Control and Prevention, on "CDC and the Role of Public Health in Acute Flaccid Myelitis (AFM), Part 2." We were joined by Dr. Janell Routh of CDC, Dr. Ben Greenberg of UT Southwestern Medical Center, and Emily Spence Davizon of the Colorado Department of Public Health and Environment. The experts discuss whether an outbreak of AFM cases is expected in 2021, along with the potential causes of AFM, and how an outbreak is defined. They talk about what they are doing to prepare for possible new cases of AFM and why preventing new cases is difficult. The experts explain the importance of surveillance and research in improving outcomes for future children that are diagnosed with AFM, including the importance of ICD 10 codes. Finally, the experts discuss the distinction between the surveillance definition and the diagnostic criteria for AFM and how these criteria evolve over time.