BORIS Johnson may have to self-isolate if Business Secretary Alok Sharma tests positive for coronavirus after they held a meeting in No 10 this week, Downing Street said.

The Prime Minister's official spokesman said the PM and Chancellor Rishi Sunak held a 45-minute socially-distanced meeting on the economy in No 10 on Tuesday.

The spokesman said: "He does not yet have his test results. Should the Secretary of State receive a positive test then he will work with the test and trace service to share information about his recent interactions.

"He did attend a meeting in No 10, which took place before Cabinet. That was a discussion on the economy and in terms of who was present it was the Prime Minister, the Chancellor and the Business Secretary."

He stressed the meeting took place with two-metre distancing in place and pointed towards the Government guidelines on how the tracers operate, which include asking individuals whether they had been to a workplace recently.

The spokesman confirmed that even those who have had Covid-19 must isolate and when pressed on whether the PM would self-isolate if told to, he said: "I would expect us to take medical advice and to follow it."

READ MORE: Some MPs more equal than others as carers left out of voting

Downing Street said the Government was not planning to review its move to end virtual voting in the Commons after Alok Sharma was taken ill with a potential infection.

Asked if there would be a review of the measures, the Prime Minister's official spokesman said: "There isn't.

"This week Parliament has agreed a way forward which will allow for people who are shielding or over 70 to take part in proxy voting and also to ensure people who can't attend Parliament in person are able to contribute to proceedings."

Alok Sharma is "doing fine", his Cabinet colleague Grant Shapps said.

The Transport Secretary said he had spoken to Sharma within the past hour and the Business Secretary was working from home while he awaited the result of his coronavirus test.