Countries across the globe shut their borders to Britain on Dec. 21 due to fears about a highly infectious new coronavirus strain, causing travel chaos and raising the prospect of food shortages days before Britain is set to leave the European Union.

With both Pfizer-BioNTech and Moderna’s Covid-19 vaccines at the U.S. Food and Drug Administration awaiting potential Emergency Use Authorization (EUA), airlines are preparing their cargo operations to ship the vaccines.

(Reuters) – Europe became the second region after Latin America to surpass 250,000 deaths on Saturday, according to a Reuters tally, with record numbers of daily COVID-19 infections reported in the past two weeks.

UCB is investing more than £1 billion ($1.29 billion) over five years to expand the company’s research and development capabilities in the U.K., which will include a transition to a newly acquired 47-acre R&D campus from Eli Lilly located in Windlesham, Surrey.

Two European patients were confirmed to have been re-infected with the coronavirus, raising concerns about people’s immunity to the virus as the world struggles to tame the pandemic.

Researchers at the University of California, San Francisco (UCSF) synthesized a molecule inspired by llama antibodies called nanobodies that could neutralize SARS-CoV-2, the virus that causes Covid-19.

Global coronavirus cases pushed past 20 million, according to a Reuters tally, with the United States, Brazil and India accounting for more than half of all known infections.

Johnson & Johnson kicked off U.S. human safety trials for a Covid-19 vaccine after releasing details of a study in monkeys that showed the company’s best-performing vaccine candidate offered strong protection in a single dose.

Unlisted German biotech firm CureVac will become the second company after rival BioNTech to launch human trials of an experimental coronavirus vaccine in the country, eyeing a potential approval in mid-2021.

Cancer patients with COVID-19 who were treated with a drug combination promoted by U.S. President Donald Trump to counter the coronavirus were three times more likely to die within 30 days than those who got either drug alone, U.S. researchers reported.