Newspaper headlines: UK 'must brace for virus' and doctors bullied 'to the brink'
The Daily Mail says Boris Johnson is facing "serious questions" about the Caribbean holiday he took over the New Year - including about who paid for it.
Records published yesterday say the Tory party donor, David Ross, who co-founded the Carphone Warehouse chain, covered the £15,000 cost of the break in Mustique.
But a spokesman for Mr Ross tells the Mail he merely found the prime minister a villa to stay in, and did not pay for the trip.
The Independent website says Labour has asked the parliamentary commissioner for standards to investigate the source of the donation. Downing Street insists all transparency requirements have been followed.
There is anger that the government has postponed a decision on the sanctions that social media firms should face if they fail to remove harmful content.
In its editorial, the Times says the delay is not good enough. "Ministers should not be bullied", the paper argues, "into letting tech companies shirk responsibility for the darker forces that lurk on their platforms".
The Daily Mirror says the "penalties must be harsh to clean up the wild west web".
Writing in the Daily Telegraph, Home Secretary Priti Patel insists appropriate measures will be taken. "Everyone has the right to stay safe online", she says, "and if tech companies abdicate this responsibility, it is up to the government to protect our citizens from harm."
The Guardian reports on an idea to build two huge dams that would completely enclose the North Sea - with the aim of protecting around 25 million Europeans from rising sea levels.
A Dutch scientist, Sjoerd Groeskamp, says a 300-mile dyke between northern Scotland and western Norway, and a second 100-mile structure between south-west England and north-western France, are possible solutions to coastal flooding.
But others have questioned the huge cost - of up to £400bn - and the ways the dams could change the ecosystem of the North Sea and its fishing industry.
The American-led study of nearly 6,000 people, with an average age of 72, found that those who played at least once a month had a significantly lower mortality rate.
Experts say the "social nature and controlled pace" of golf allows people to continue playing into their later years, even after a heart attack or stroke.
Finally, the i says the musings of Aristotle are enjoying a revival at a state school in Surrey.
Kings College Guildford has made the ancient Greek philosopher a cornerstone of English lessons for Year 7 pupils - who now learn about ethos, pathos and logos rather than completing what the school says are "gimmicky" exercises, such as mock letters to practise their persuasive writing.
"There is a real desire for children to feel clever," says the head teacher, Alastair McKenzie.
"We look at an 11-year-old and think they need to be reading books that are aimed at 11-year-olds. Actually, lots of kids don't want that."