Caitlyn Barber, 28, was a competitive runner who had completed five half-marathons. Her initial mild COVID-19 illness has turned into an 18-month ordeal.
Jen Singer was an active cyclist who could easily keep up with her young adult sons. Her COVID-19 illness eventually led to heart failure and a pacemaker.
Dr. Ziyad Al-Aly speaks about Long COVID and the importance of remaining vigilant.