How United Airlines overcame one of the largest limitations to transporting Pfizer's COVID-19 vaccine to the US

United Airlines flew the first doses of Pfizer's COVID-19 vaccine last week, the Wall Street Journal reported on Friday. The Pfizer vaccine is uniquely difficult to transport as it has strict below-freezing temperature requirements that require the use of dry ice, a dangerous good to transport in the aviation industry. United and the Federal Aviation Administration worked to alleviate the dry ice restrictions to fly as much of the vaccine as possible on each flight. The COVID-19 vaccine has… (www.yahoo.com) 更多...