COVID-19 has been bad. Many, likely millions of people, who have survived their COVID-battle, face a difficult array of symptoms. Breathing problems, joint pain, heart palpitations, brain fog are a few of them. This is part 3 of a three-part podcast series on long-COVID. This episode is a conversation with Dr. Terina Martinez, a field application scientist at Taconic Biosciences, which develops and sells mouse models. She talks about the challenges and possibilities of modeling long-COVID. There is also an article in Nature Methods to go along with this podcast series.