The United Kingdom has introduced a new rule as part of measures to contain the spread of the new variant of Coronavirus, Omicron, said to be a highly infectious variant. 
Two cases of the new variant have been recorded in the UK.
According to a new directive by the Prime Minister, Boris Johnson, all travellers to the UK will have to take a polymerase chain reaction (PCR) test by the end of the second day of their arrival.
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He said travelers must self-isolate until they receive a negative test result.
“All international arrivals must take a Day 2 PCR test and self-isolate until they receive a negative result.
All contacts of suspected Omicron cases must self-isolate for 10 days, regardless of their vaccination status. They will be contacted by NHS Test and Trace.
Face coverings will become compulsory on public transport and in shops – not including hospitality.
The JCVI (Joint Committee on Vaccination and Immunisation) will consider giving boosters to a wider age group, as well as reducing the gap between the second dose and booster.” the new rule states
