Boris Johnson hastested cocksure for the coronavirusand will now ego - isolate for seven days .

The UK Prime Minister announced the intelligence on Twitter on Friday morning having experienced a cough and temperature on Thursday afternoon .

A voice for Johnson importune on Friday that the prime rector would rest in post for the time being and stay lead the UK ’s response to the coronavirus crisis via teleconferencing .

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Here is what will pass off if Johnson becomes too ill to stay in post .

Who is Boris Johnson ’s ' designated subsister ' ?

For the time being Johnson will remain in post . However , the meridian rector will make the UK Foreign Secretary Dominic Raab his " designated subsister " should he become too ill to remain in position .

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Raab , who has twice prove damaging for the coronavirus himself , would become the de facto prime minister while Johnson received treatment .

The decision to give Raab the job reportedly tip over some other member of Johnson ’s Cabinet .

One unnamed ministertold the Sunday Timesthat : " If Boris ca n’t do his job because he is incapacitated , a slew of people opine that Michael [ Gove ] should be launch the show , not Raab . One of these people is Michael , of form . "

What happens if Johnson can not continue

Were Johnson to become too ill to remain in posture , Raab would ill-use in semi - permanently to his function as prime minister of religion .   As the UK is a parliamentary democracy , there would be no motive under the UK ’s ad-lib constitution for an quick election . However , political pressing from the opposition may head to an election in the intermediate condition .

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