Three junior doctors at the same NHS hospital have contracted coronavirus, it is reported.
It is believed the professionals, each aged 30, are on ventilators and are being treated by colleagues at a hospital which has not been named.
They are three of the 1,965 confirmed cases of Covid-19 in the capital alone.
An insider told The Sun: “They are not in a good way and they got ill precisely because they were helping other people.
“Hopefully they are all strong enough to fight off the virus. But it serves as a warning to younger people not to be complacent.
“It is beginning to affect a lot more young people. Some will get mild symptoms — but not all will, and what has happened to the junior doctors shows that.”
More than 200 people who were diagnosed with coronavirus in the UK have since died.