COVID-19 antiviral pills could be our next tool to help end the pandemic. Early trials from Merck and Pfizer show they dramatically reduce serious illness and trips to the hospital. Infectious diseases specialist Dr. Sumon Chakrabarti explains how they work. Subscribe to CTV News to watch more videos: null Connect with CTV News: For the latest news visit: http://www.ctvnews.ca/ For a full video offering visit the CTV News Network: http://www.ctvnews.ca/video CTV News on Facebook: https://www.facebook.com/CTVNews CTV News on Twitter: https://twitter.com/CTVNews Watch CTV News on Twitter: https://twitter.com/WatchCTVNews CTV News on Google+: https://plus.google.com/+CTVNews/posts CTV News on Instagram: https://instagram.com/ctvnews/ CTV News on Pinterest: https://www.pinterest.com/ctvnews --- CTV News is Canada's most-watched news organization both locally and nationally, and has a network of national, international, and local news operations.