Op-ed by U.S. Ambassador to Ghana Stephanie S. Sullivan  Under the dire circumstances of this pandemic that has taken such a heavy toll on the world, the United States is grateful that Ghana is now better equipped to combat the virus. We welcomed the arrival of 600,000 doses of COVID-19 vaccine through COVAX on February 24, 2021.  On that day, I joined the Honorable Minister for Health, Kwaku Agyeman-Manu, …