It will most likely come by air
"Matt Hancock told BBC Question Time on Thursday: "We have a plan for the vaccine which is being manufactured in Belgium, and if necessary we can fly in order to avoid those problems."
“We’ve got a plan for all eventualities,” he added.
More ferry contracts (although I am aware that Felixstowe is currently dealing with excess PPE containers) -
October 2020;
"Four ferry companies have been handed government contracts worth a total of £77.6 million to provide post-Brexit freight capacity."
"The Department for Transport has announced that it has signed agreements with Brittany Ferries, DFDS, P&O Ferries and Stena Line."
"This will ensure that vital medical supplies and other critical goods “continue to be smoothly delivered into the UK whatever the outcome of negotiations with the EU”, the DfT said."
"The contracts will be in place for up to six months after the Brexit transition period ends on December 31."
"The agreements secure freight capacity on nine routes serving eight English ports “in areas less likely to experience disruption.”
"These are Felixstowe, Harwich, Hull, Newhaven, Poole, Portsmouth, Teesport and Tilbury."
"The contracts were awarded using the Government’s freight capacity framework which involves a shortlist of “experienced freight operators” entering bids."
"Should the freight capacity not be required, termination costs “would reflect a fraction of the full contract amount”, the DfT said."
"There are concerns about potential delays to cross-Channel trade at major ports such as Dover and Folkestone from January 1."
"A solution is seen as sending freight up the coast to northern ports, where capacity isn’t as pressured, and much of the cargo arrives closer to the end destination."
www.business-live.co.uk/ports-logistics/new-776m-brexit-ferry-contracts-19095077