Johnson & Johnson
But the pharmaceutical giant's results showed it does not work as well as some two-shot rivals.
Malcolm Turnbull, the former Australian leader, warns the PM to “be careful what you wish for”.
It's the second time testing has been halted on vaccines because of an illness.
Letwin, ridiculed as ‘Parliament’s prime minister’, could help Boris Johnson more than many assume.
Users are being urged to check the batch number on any boxes they have at home.
An Oklahoma judge has found Johnson & Johnson liable for fuelling an opioid epidemic in the state by deceptively marketing painkillers and ordered the drugmaker to pay damages of $572 million.
The drug maker says it will appeal the ruling, with one of its lawyers arguing: "You can't sue your way out of the opioid abuse crisis."
He's been a family friend of the Trumps for years.