Adults living alone or single parents living with children under the age of 18.
Johnson said: "There are too many people, particularly those who live by themselves, who are lonely and struggling with being unable to see friends and family".
They will be allowed to meet inside their homes without social distancing.
Single-adult households, including single parents children, will be able to stay at one other household from 13 June as part of the Government's new "support bubble" plan for England.
"I want to stress that support bubbles must be exclusive - meaning you can not switch the household you are in a bubble with or connect with multiple households".
Others said that they would soon be allowed to visit shopping centres from next Monday when non-essential stores reopen, but still can not see their relatives.
As the United Kingdom toll of coronavirus deaths confirmed by a test rose by another 245 to reach 41,128 yesterday, the PM said: 'There is a balance of risk to be struck and the issue for me is how far down you can get the incidence of disease.' He said 53,000 people have the virus at present and the R rate - how many others each infected person passes it to - is still just below one.
The figures cover people who have died in hospitals, care homes and the wider community after testing positive for coronavirus in the United Kingdom as of 5pm on Tuesday, up by 245 from 40,883 the day before.
Once you choose your bubble, you can not swap or expand it.
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All members of both households in the bubble must self-isolate for 14 days.
No. The arrangement must be exclusive with no switching of bubble partners.
The Prime Minister Boris Johnson is facing increased pressure to axe the 2 metre social distancing rule to help re-open the on-trade and save jobs.
Is there any limit on the distance between households in a bubble?
Can you chop and change who you see?
Boris Johnson, the last man in the world that anyone wants to listen to talking about sex, delivered the news at the 33-second mark below, without mentioning "sex" specifically, for which we are very grateful.
What about vulnerable people who are shielding due to their age or health problems?
And to avoid new chains of transmission of the virus, support bubbles have to be exclusive, and can not be switched with different or multiple households.
What about parents who are separated but who now share childcare with the children moving between the two households? A single parent could, for example, form a bubble with their own parents so that their children would be able to spend time with their grandparents and be cared for by them as if they were a member of their own household.