A small crowd cheered as semi-trucks rolled out of the loading dock at a Pfizer manufacturing plant in Michigan, on Sunday, beginning historic journeys to deliver insulated boxes of the nation's first COVID-19 vaccine to hospitals and health departments across America. Hours later, the Centers for Disease Control and Prevention formally announced that it had signed the Advisory Committee on Immunization Practices’ recommendation of the first authorized coronavirus vaccine for people 16 years and older. Plans call for health care personnel and long-term care facility residents to be vaccinated first. Earlier, the caravan of FedEx, UPS and Boyle Transportation trucks accompanied by unmarked police cars pulled out of the parking lot about 8:25 a.m., headed to airports and distribution centers. Pfizer has said it will deliver 6.4 million doses in these initial shipments. Federal officials say the deliveries will be staggered, arriving in 145 distribution centers Monday, with an additional 425 sites getting shipments Tuesday and the remaining 66 on Wednesday.