Shut down all airports, ferry ports, the Eurostar and borders.

If the British government dose this we can contain and kill Covid-19 as there will be no more coming into or out of the U.K.
Put a travel ban in place no one in or out of the U.K.

You may wish to sign this petition calling for the same action.

Close the Borders of the United Kingdom to Prevent the Spread of Coronavirus: Close the Borders of the United Kingdom to Prevent the Spread of Coronavirus.

You can find out more about coronavirus and how you can protect yourself and others here:

NHS website: https://www.nhs.uk/conditions/coronavirus-covid-19/
UK Government website: https://www.gov.uk/coronavirus

You can read NHS tips to help if you are worried about coronavirus here: https://www.nhs.uk/oneyou/every-mind-matters/coronavirus-covid-19-anxiety-tips

You may also be interested to know that because of the large number of petitions that have been started in relation to coronavirus, the Petitions Committee has been questioning the Government about its response to the coronavirus outbreak.
 
Find out more and watch the Committee put questions suggested by petitioners to Government Ministers and the Deputy Chief Medical Officer: https://committees.parliament.uk/committee/326/petitions-committee/news/145767/committee-question-deputy-chief-medical-officer-and-ministers-on-coronavirus-response/
 
Read correspondence with Government Ministers asking further questions: https://committees.parliament.uk/committee/326/petitions-committee/publications/3/correspondence/