Shipments of the newly authorized Moderna vaccine arrived in states today, launching immunization with a second vaccine, as the United States' COVID-19 total approached 18 million cases.Federal health officials over the past few days green-lighted the vaccine for emergency use, which vastly expands the reach of COVID-19 vaccines to more than 4,000 sites and comes as the pace of holiday travel picks up, a factor likely to push US case numbers higher in the weeks ahead.Vaccine distribution expands reachAt a Health and Human Services (HHS) briefing today on Operation Warp Speed (OWS), Gen.
Gustave Perna, OWS' chief operating officer, said today and tomorrow a total of 5.9 million doses of Moderna's vaccine will arrive at 3,400 locations, and