OLIVE BRANCH, Miss. (AP) — Initial shipments of the second COVID-19 vaccine authorized in the U.S. have left a factory as the nation works to bring the coronavirus pandemic under control. The trucks left from the Moderna McKesson plant in Olive Branch, Mississippi. Employees began boxing up the shots at the factory in the Memphis area early Sunday morning. It comes just days after the Food and Drug Administration authorized an emergency rollout of the vaccine. An expert committee is considering who should be next in line for early doses of the vaccine. Early shots are mostly being given to health care workers and residents of long-term care homes.