Savannah research office enrolling patients for new plant-based COVID-19 vaccine trial Savannah research office enrolling patients for new plant-based COVID-19 vaccine trial By Blair Caldwell | April 19, 2021 at 5:14 PM EDT - Updated April 19 at 8:01 PM SAVANNAH, Ga. (WTOC) - Trials for COVID-19 vaccines continue for companies that signed up initially, but also for new ones looking to offer something different. A local research office is now enrolling patients for a new plant-based product. Although we already have a few COVID-19 vaccines on the market, research continues to help find alternatives. Dr. Paul Bradley, Chief Investigator here at Meridian Clinical Research says their latest trial combines plants and science.