SINGAPORE - Singapore Airlines is taking steps to raise the limit of dry ice it can carry per flight, so it can transport any Covid-19 vaccine on a larger scale in future.The national carrier on Saturday (Dec 5) said it is working with vaccine manufacturers and regulators to increase the amount of dry ice that can be carried safely on its planes from 3,500kg per cargo flight now.Please subscribe or log in to continue reading the full article.Latest headlines and exclusive storiesIn-depth analyses and award-winning multimedia contentGet access to all with our no-contract promotional package at only $0.99/month for the first 3 months**Terms and conditions apply.