Leach joined the London hospital as a consultant in 1994 and over the years has risen to degrees and became the 2014 Clinic Manager for the intensive care unit "Pulmonary and critical care", which is the leading respiratory care department in the country.
Leach has also authored five manuals on the subject, including "The Respiratory System at a Glance".
Sources at the hospital confirm to The Telegraph that it is Leach who is leading the treatment team around Boris Johnson and that he is personally guarding the prime minister.
- Richard is a brilliant doctor who knows everything that can be known about respiratory care. He has saved thousands of lives, says a former colleague to the newspaper last night.
- There is a bunch of younger doctors there who have been trained by Richard Leach, who is the most knowledgeable about respiratory care in the country and is a straight and clear person, says the colleague.
"May be gone two months"Although Leach succeeds with his treatment of Johnson, it may take a long time before the prime minister is back at work. Experts that the Daily Mail has talked to say it can take one to two months. A period of inactivity in the intensive care unit will result in a significant reduction in muscle mass of the Prime Minister.
"I would expect that most people who have been so ill need at least a month, maybe two, to recover to their full capacity," says Professor Paul Hunter, an expert on infectious diseases at the University of East Anglia.
The latest news about Prime Minister Boris Johnson's condition came this morning from the country's Deputy Health Minister Edward Argar.
- He is in a stable condition and in good courage, greeted Argar, writes among other BBC.
Foreign Minister Dominic Raab leads the government in Johnson's absence.