Before revision:  We identify 518 listings directly related to COVID-19 products and monitor the temporal evolution of product categories including PPE , medicines (e.g., hydroxyclorochine), and medical frauds(e.g., vaccines).
After revision:  We identify 518 listings directly related to COVID-19 products and monitor the temporal evolution of product categories including Personal Protective Equipment (PPE) , medicines (e.g., hydroxyclorochine), and medical frauds(e.g., vaccines).