People who are fully vaccinated against coronavirus no longer have to isolate if they come into contact with someone who has tested positive.
From today, people in England who have had both doses or are under 18 will not have to spend 10 days in quarantine if they are a contact of a positive case.
The move has been hailed as “another step back towards normality”.
They will now be advised to take a PCR test, but that will not be compulsory and they will not have to self-isolate while they wait for the result.
If someone develops symptoms of the virus, the government says they should self-isolate and get a PCR test, and stay in isolation until the result comes back.
Health Secretary Sajid Javid said: “The British public have played a vital role following self-isolation rules throughout the pandemic and sacrificing so much to help bring the virus under control.
“The requirement for double-jabbed and under-18s who are contacts of people with COVID-19 has been removed as we cautiously take another step back towards normality, thanks to the phenomenal success of our vaccine rollout.
“Vaccines are what will bring this pandemic to an end, with over 84,000 lives already saved and 23 million infections prevented.
“Please come forward to receive your jab as soon as you can to protect yourself and the people around you.”